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Summary of Contents for Datacom DM16E1
- Page 1 DM16E1-DM4E1 DM16E1-DM4E1 INSTALLATION AND OPERATION MANUAL 204-4001-19 Release. 19 Date: 16/1/2009...
- Page 2 Although this document has been written with care, the company does not assume responsibility for occasional mistakes and omissions in its content. Likewise, DATACOM is not liable for any damages that may result from the use of the information contained in this manual. Specifications provided in this manual are subject to changes without any previous notice and should not be construed as a commitment of any kind by DATACOM.
- Page 3 CONTACTS In order to contact the DATACOM technical support, or sales department: • Support E-mail: suporte@datacom.ind.br Phone: +55 51 3358-0122 Fax: +55 51 3358-0101 • Sales E-mail: comercial@datacom.ind.br Phone: +55 51 3358-0100 Fax: +55 51 3358-0101 • Internet www.datacom.ind.br •...
- Page 4 CONVENTIONS In order to improve the agreement, the following conventions are made throughout this manual: hyperlink - Indicates an internet site or an e-mail address. Command or Button - Always that some reference to a command, a button or a software menu is made, this indication will be in italic.
- Page 5 TELECOMMUNICATION SAFETY Telecommunication network interfaces are classified according to their circuit characteristics. The following table lists the status of safety circuit characteristics of several standard interfaces. If the safety characteristic of a given interface type differs from the standard one, a notice will be given in the equipment manual.
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Page 6: Table Of Contents
INDEX INTRODUCTION ..................11 1.1. Aggregate Interfaces Available ................ 12 1.1.1. Aggregate Optics ........................12 1.1.2. Electric Aggregates ........................ 12 1.2. E2 and E3 Multiplexing Principle ..............12 1.3. Ethernet Remote Bridge .................. 13 TECHNICAL SPECIFICATIONS ............... 14 2.1. Environmental Conditions ................14 2.2. - Page 7 8.4. Status ......................68 8.5. Bridge with packet ordainment (Bridge Packet Sequencing)......69 8.6. Different Bridge hardware versions for the DM16E1/DM4E1 equipment ..69 8.6.1. SW Change from Bridge_HW1 to Bridge_HW2 or vice-versa ..........71 8.6.2. Cards and topologies supported by version with ordainment ..........71 8.6.3.
- Page 8 15. INSTALLATION ..................96 15.1. Wall and 19” Rack Mounting ................96 15.2. Optical Connections ..................96 15.3. DM16E1 / DM4E1 Mixed Operation ............... 97 15.4. Point to Point Topology ................. 97 15.5. Unidirectional Ring Topology (Cascading) ............. 97 15.6. Bidirectional Ring Topology ................98 15.7.
- Page 9 Rear panel of the DM4E1 ............... 15 Figure 5. Front panel of the DM16E1 ............16 Figure 6. Rear panel of the DM16E1 with either IEC or BNC connectors ..16 Figure 7. Rear panel of the DM16E1 with RJ45 connectors ......16 Figure 8.
- Page 10 Dimensions ..................15 Table 3. Weight .................... 15 Table 4. Pinout of the DM16E1/DM4E1 – PC serial connection ....18 Table 5. Configurable parameters using the Config Wizard Settings Menu . 25 Table 6. RJ45 connector pinout for G.703 ............ 38 Table 7.
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Page 11: Introduction
(four E2 for E3 channels) ITU-T recommendations. In the DM16E1 model, E1 tributary interfaces can be supplied with BNC or IEC connectors for 75 ohms or RJ45 for 120 ohms. The type of connector required should be specified when purchasing. -
Page 12: Aggregate Interfaces Available
The external alarms are connected to DM16E1/DM4E1 by a DB9 connector located at the rear panel. The external alarms can be, for example, for ambient use (temperature and humidity) or to detect intrusion into the place where the equipment is installed (intrusion alarm). -
Page 13: Ethernet Remote Bridge
In the two multiplexing categories, drop-insert can be configured for tributary channels, so that several DM4E1 or DM16E1 units can share the same E3 link. Each unit inserts data into channels which are not used by the others, and this way form an optic ring with 100% utilization of the link. More details can be found in chapter 15. -
Page 14: Technical Specifications
Figure 2. Power supply input panel 2.3. Consumption To estimate the total consumption of the equipment, add the consumption of the basic unit to the consumption of the aggregate interfaces used. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 15: Dimensions
72mm with rubber base supports 435mm without subrack brackets Width 483mm with subrack brackets Depth 232mm Table 2. Dimensions 2.5. Weight Table 3 shows the weights of DM16E1, DM4E1 and respective modules: Interface Weight (kg) DM4E1 3,10 DM16E1 3,40 E3 optic 0,10... -
Page 16: Led Indicators
LOS or AIS. More details in item 6.3. TRIBUTARY (1 to 16 in DM16E1 and 1 to 4 in DM4E1): indicates the status of the equipment E1 G.703 tributaries. The behavior pattern is similar to that of aggregate led indicators. More details in item 4.2. -
Page 17: Applicable Norms
MAIN and BACKUP: ports for DC or AC voltage, as described in chapter 2.2. TRIBUTARY (1 to 16 in DM16E1): the equipment can be supplied with RJ45 connectors for an impedance of 120 ohms, or with BNC or IEC169/13 connectors for 75 ohms. In this case, there are straps for the connection of the coaxial cable external shield to the frame ground (grounding). -
Page 18: Management Via The Terminal Port
PC or Terminal, by means of a cable with a DB9 male connector at the end of the DM16E1/DM4E1 and a female DB9 or DB25 connector on the end of the PC. The pinout is presented in... -
Page 19: Configurations For Management Via The Terminal Port
If possible, the option to send characters automatically (without pressing ENTER) should be selected in the emulation software. The Terminal authentication screen is represented below: ------------------------------------------------------------------------- DataCom Telematica – DM16E1 Multiplexer ------------------------------------------------------------------------- Password: [ DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 20: Trial Operation
The trial period can be finalized either by the terminal or via management. On the terminal, this is done by entering a specific password, which can be obtained from DATACOM. The trial finalization password can be used in two ways via the Terminal: •... -
Page 21: Main Terminal Screen
13. − Direct IP SNMP management: Select the type of management (e.g., SNMP). In order to set management via a serial port, this parameter should be disabled. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 22: Option Choose Equipment To Configure
In order for the management system to function correctly, configurations must initially be made locally. This requirement is necessary because an established aggregate link is needed for the management operation. Details about the required configuration are addressed in chapter 3.3. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... - Page 23 Once the equipment to be configured has been chosen, the terminal will exhibit information on configuration and status referring to these specific units. In the following sub-sections, details of the configuration of the equipment interfaces will be addressed. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19...
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Page 24: Equipment Main Menu
3.9. Config Wizard The Config Wizard menu allows fast access to the routing interfaces, being ideal to quickly configure IP- based management systems. The illustration below shows the Config Wizard main screen: DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... - Page 25 WAN2 using Frame Relay Base address for structured sub-net Sub-Net address on the interface Address Sub-net IP mask on the interface Sub-Net Mask Table 5. Configurable parameters using the Config Wizard Settings Menu DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19...
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Page 26: Settings Menu
V.35 tributary interface uses the same physical space within the E3 frame as tributary E1 number 16. Therefore, in a DM16E1 device with an active tributary 16, a command to activate the V.35 tributary interface could be considered inconsistent. - Page 27 Please note that even a fully consistent memory does not guarantee a correct configuration for a given user application. This status is a response to a user memory verification request. See Update changes (user memory to equipment) in this chapter. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19...
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Page 28: General Settings
Interface Converter: Data received from the main aggregate card are transmitted directly to the backup interface and vice-versa. A proprietary scrambler is inserted in the optic aggregates to assure clock regeneration. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... - Page 29 − Transp. Opt.Modem / PtP Opt.Modem: Under these topologies, data received from the aggregates are directed to an E3 tributary (DM4E1 E3 mode, and DM16E1). These may use backups as in Point to Point topologies. Using Transp. Opt.Modem, data are forwarded directly, with no modifications.
- Page 30 Output Activity Time starts counting. The Instantaneous value reactivates the relay right after the end of the period, and Infinity means the activation period will not repeat. The time range is configurable between 1 s and 24 h. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19...
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Page 31: Interface Selection
<SPACE/TAB> Change [N]ext Card <PgDn> ------------------------------------------------------------------------- • Function keys: − Arrows: Alternate among the options on the screen. − Enter: Saving settings on user memory. − Esc: Discards changes and exits screen. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 32: Tributary Table
E1 (G.703) that carries the number contained in a given symbol. − G: Available in DM16E1 only. It indicates that the position marked in the table is being directed to the physical tributary that carries the corresponding numbering. •... -
Page 33: Tests Menu
The main purpose of this menu is to show the status of devices and interfaces. They also allow for the operation of a few commands directly, without the need for activation. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 34: Device Status
The aggregates are operating in redundant transmission. − Values for Ring topologies: Using Ring Backup: Indicates that, due to a failure in the main link, the device is using data provided by the protection ring (BACKUP ring). DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... - Page 35 AIS alarm signal to the tributaries. This reference can also be used by tributary V.35 present in the device. − Internal: Using internal reference. − External: Using external reference. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19...
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Page 36: Interface Status Menus
3.13. System Parameters Fixed parameters: • Product Code: Product code, which is unique for each DATACOM piece of equipment. Code for DM16E1 is 3003, and for DM4E1 it is 3004. • Resets since factory test: Number of resets since factory test. - Page 37 • MAC Address: MAC address of SNMP Ethernet interface (located on the equipment rear panel). • SN: Series number of equipment. • Configurable parameters: • ID: Identification for user’s use. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19...
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Page 38: G.703 Tributary Interfaces
4. G.703 TRIBUTARY INTERFACES The DM16E1 and DM4E1 have 16 and 4 E1 tributary interfaces, respectively. Connectors are located on the rear panel. The interfaces are fully independent, that is, they can carry signals of different origins, with different clock references, with or without G.704 frame structure. -
Page 39: Electric Characteristics Of The G.703 E1 Interface
E01R to E16R – Grounding via reception coaxial cable shield (IN). Position C (connected): connects the coaxial cable shield to the frame ground. Position I (isolated): does not ground the coaxial cable shield. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 40: Strap Location
4.8. Local Digital Loopback – LDL The local digital loopback operates in both directions. The external E1 connection (G.703) can be tested for each E1 interface. The figure below shows the test conditions. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 41: Terminal Operation
3. 4.9.1. Configuration Configuration of DM16E1 and DM4E1 tributaries consists of two parts: aggregate map configuration and port specification. If required, one or more positions can be reserved for tributaries in the aggregate map. These are configured using a letter (or letter and number) referring to a specific application for the tributary. - Page 42 In the DM16E1 model, the position in the table is always directly related to the tributary. In the DM4E1 model, it is related to the symbols G1, G2, G3 and G4. Enabling of the tributaries depends on their presence in the table. The panel led will remain off for tributaries absent from the table or used with inverse multiplex.
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Page 43: Status
Current Tests: Type of test running at the port. Values for E1 ports are None, Running LDL, and Running LAL. • Link: Status of data received at the port. This status is also indicated by panel leds: DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 44: Tests
Note that the activation of an LDL/LAL test in the remote unit functions as a remote loopback, and may serve as a test for the local interface (for example, inserting BERT in a E1 channel). For further detail about the test operation mode, see chapters 4.7 and 4.8 DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 45: V.35 And V.36/V.11 Digital Interfaces
5. V.35 AND V.36/V.11 DIGITAL INTERFACES The DM16E1 and DM4E1 have a digital interface that is selectable via straps (V.35 or V.36/V.11 interface). This interface is available at a DB25 connector located on the rear panel following ISO2110 Amd.1 pinout recommendations for both V.35 and V.36/V.11. -
Page 46: Table 9. Pinout For V.36/V.11
115 Reception clock ERCa External reception clock ERCb Table 9. Pinout for V.36/V.11 * In ISO2110 Amd.1, pins ERCa (22) and ERCb (23) correspond to CT108 and CT102-b (DTE Common Return), respectively. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 47: V.35 / V.36/V.11 Selection Straps
This test allows a quick verification of transmission quality without the need for external test equipment. Error insertion is also possible. The figure below shows the test pattern generation at this interface. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 48: Local Digital Loopback - Ldl
V.35 to the router, see chapter 0. If the router is directed to a structured E1 channel in the aggregate, the V.35 should be disabled (absent from the tributary table). DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 49: Configuration
2048kHz E1 AIS Ref. Clock: Uses the 2048 kHz clock for AIS emission in case of failure. This clock is selected in the general equipment configurations. See chapter Table 5 for more information. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 50: Status
Current Tests: Indicates the presence and type of any tests that are active in the card. Test types include None, Running LDL, Running LAL, and Running BERT. • CT105, CT108 and CT109: DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 51: Tests
Insert BERT Error: Inserts an error in the generated BERT 511 sequence. • Reset BERT Timer: Resets the total test time, summed in the Test Time field. • Clear Error Counter: Resets the test error time counter (Errored Timer field). DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 52: Optic Interface Cards
DM16E1-SLx15 – Interface E3 ótica em 2 fibras singlemode tx em 1550nm, longo alcance, potência nominal de 0dBm. DM16E1-SSB13 – Optic E3 interface over 1 singlemode fiber at 1310 nm TX and 1550 nm RX, short wavelength, nominal power: –15dBm. -
Page 53: Characteristics Of Optic E3 Interfaces
DM16E1-SLB15 – Optic E3 interface over 1 singlemode fiber at 1550 nm TX and 1310 nm RX, long wavelength, nominal power: –5dBm. TX Minimal Estimated Module Description Tx [nm] Sensitivity P.S. Power Range* ~ 2km MS13 Multimode 1310 -20dBm -31dBm... -
Page 54: Optic Interface Configurations
The local analog loopback is used to test the analog part of interface card circuits, except for optic components. Figure below shows an example of the test conditions. Figure 17. Local analog loopback at an optic interface DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 55: Local Digital Loopback - Ldl
The terminal can configure, monitor and test aggregate interfaces. It also provides information about what cards are installed. DM16E1 and DM4E1 accept both optic and electric aggregate interfaces. Configurations for both types are the same. This chapter can be used as reference for the configuration of electric aggregate interfaces. -
Page 56: Status
Backup card acts as if it were receiving the signal. Figure 19 shows a DM16E1/DM4E1 loopback with aggregate redundancy. The indication of equipment backup status is in bold, Main and Backup indicate the status for the Main Link of Main and Backup aggregate interfaces, respectively. -
Page 57: Tests
Figure 19. A DM16E1/DM4E1 loopback operating with no failures Figure 19 exemplifies a link rupture at the main ring. Equipment A: The Main card goes into LOS status; requests backup (Loop Seq) from equipment C. Waits for data to be received from equipment B, on the Backup card. - Page 58 The activation of tests on remote aggregate interfaces causes loss of the management link and should not be set. If this setting is made by accident will be necessary to deconfigure the test locally. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19...
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Page 59: Electric E3 Interface Cards
(1 + 1), it is possible to install an electric E3 interface card in the equipment. This card is called DM16E1-E3Ei and it cannot be used as an aggregate card. It is installed in the position of the Ethernet Remote Bridge, and the connections are made through the tributary 1 connectors. -
Page 60: Status Indicators Of The Internal E3 Card
7.7. Local Analog Loopback – LAL The local analog loopback is used to test the analog part of the interface card circuits. The figure below gives an example of test conditions. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 61: Local Digital Loopback - Ldl
1. See item 10.2 for more information. 7.10. Operation via Terminal DM16E1 and DM4E1 can use either optic or electric aggregates. In both cases, configuration is the same. For a reference on how to configure electric aggregate interfaces, consult chapter 6.7. -
Page 62: Configuration
<PgUp> Pre[V]ious Card [N]ext Card <PgDn> ----------------------------------------------------------------- States: • Operation: Indicates if the card is Active or Not Active. • Current Tests: Indicates the active test: Running LDL or Running LAL. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 63: Tests
2 - Start LDL 3 - Start LAL Option: [ ] ------------------------------------------------------------------------- <ESC> Return to Previous Menu [N]ext Card <PgDn> ------------------------------------------------------------------------- Options 1, 2 and 3 disable tests, enable LDL and enable LAL, respectively. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 64: 100Baset Ethernet Remote Bridge
The Bridge consists in a card installed inside the equipment. The Ethernet connection is made with an RJ45 connector available on the rear panel of DM16E1 and DM4E1. The interface is optional, but the RJ45 connector and the Link led are always mounted on the cabinet. -
Page 65: Ethernet Physical Level
8-pin RJ45 Signal source Transmitted data – wire + Transmitted data – wire - Received data – wire + Received data – wire - Table 13. Pinout for RJ45 Ethernet connector DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 66: Operation Via Terminal
When directing the Bridge to G.703 tributaries, it is mandatory to use the inverse multiplexing system. In the DM16E1 model, if a channel is configured as BG (Bridge) on the aggregate map, it is used as an output for the Bridge. - Page 67 E1 network, assuring the operation with clock breakup up to 100ppmm amongst the channels. Once there is an equipment at the E1 network set as clock master, it is recommended to set both DM16E1/DM4E1 on an inverse multiplexer link to the internal clock. •...
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Page 68: Inverse Multiplexer Management Configuration
Only synchronized channels (indicated by “S”) are used by the Bridge; the available rate can be calculated by multiplying the number of synchronized channels by the E1 channel rate (2048kbit/s). DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 69: Bridge With Packet Ordainment (Bridge Packet Sequencing)
Inverse Multiplexing mode, assuring data delivery in a correct order and through an efficient way with better utilization of E1 channels. This characteristic only exists in DM16E1/DM4E1 built with Bridge card HW2. 8.6. Different Bridge hardware versions for the DM16E1/DM4E1 equipment The sequencing packet characteristic is very important for some applications. - Page 70 Figure 27. Bridge card HW2 View Once it is inserted in the equipment, the terminal identifies the card through the following way: Slot 5 – Port 01 – Ethernet Bridge HW2. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19...
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Page 71: Sw Change From Bridge_Hw1 To Bridge_Hw2 Or Vice-Versa
• Regular Ring Optical Modem; • Cross Ring Optical Modem; • ATM Optical Modem. The incompatible cards are detected. It is possible to identify its type through the terminal or DmView. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 72: Setup
Despite the remote management is not allowed, the terminal (version 37 or upper, and all firmware with ordainment) will correctly indicate the software type used in the remote. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 73: Routing
9. ROUTING Routing is one of the special features included in the main card of DM16E1/DM4E1, and it has two WAN ports: • WAN1: dedicated to the DMLAN protocol. • WAN2: PPP or Frame Relay. It also has a LAN Ethernet port. Each port has a unique IP number, independent from the others. -
Page 74: Operation Via Terminal
If the indicator that corresponds to the use of management channels (“M”) does not appear in the aggregate map, the equipment automatically uses the 40-kbit/s channel out of the payload (standard configuration). DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 75: Wan2 Port Physical Configurations
Note that WAN2 set to Frame Relay always works as an end element. Thus, direct communication (without an intermediate UNI-Network element) between two DM4E1 / DM16E1 devices using Frame Relay is not possible. The objective of this function is to allow Frame Relay access to cards only (UNI-User). - Page 76 When this option is used, it should be verified that this same tributary channel is not included in the tributary table for use as E1 (G, BG in the position of the tributary channel for DM16E1, or Gn, Bn for DM4E1 in the E3 mode, where n is the number of the tributary channel used).
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Page 77: Ip Configurations
The router always keeps routes for sub-nets that are known directly by their IP configurations. Thus, configuration of all active LAN interfaces in a ring topology in different sub-nets is necessary, under penalty of routing divergence. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 78: Generic Wan Configurations
/ IP connection disable: Connection disabled by configuration. • disable and without physical connection: Interface locally disabled, with no physical PPP connection. • without physical connection: Interface without physical connection. • DOWN: Deactivated interface. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 79: Routing General Menus
Option: [ ] ------------------------------------------------------------------------- ------------------------------------------------------------------------- 9.4.4. Router General Options By selecting the option Router Configuration General Router Configuration it is possible to get the list of options from the screen below: DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 80: Wan1 Ip Configuration
Note that, for these configurations to be effective, all devices should be configured to receive data in the same channel, and the WAN1 port should be active (refer to items 9.2 and 9.4.2). DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 81: Configuration Of Static Routes
A new field for route insertion is opened when selecting (A)dd. The router allows up to 10 static routes to be configured by the user. Options (E)dit and (D)elete require selection of the route to be edited or deleted; this is made with up and down arrows. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 82: Gateway Default Configuration
5 - Gateway Default Option: [ ] ------------------------------------------------------------------------- ------------------------------------------------------------------------- Except for the configurations described in items 9.4.4 to 9.4.7, only the IP address of WAN2 can be configured, as shown in screen below: DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 83: Wan Frame Relay Interface Configuration
Interface: Always WAN2, indicating that this will be the interface to be used by the virtual circuit inserted. • DLCI: Identifies the virtual circuit associated with the IP address/mask pair. Should always be different from 0 (zero). DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 84: Advanced Frame Relay Parameters
D/U or I/U: network circuit is inactive or was not configured yet. 9.4.11. Advanced Frame Relay Parameters Advanced Frame Relay configurations are accessible via Router Configuration Advanced Frame Relay Configuration, as shown in screen below: DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... - Page 85 N391 (Polling counter): Number of packets of network verification between two status packets. • N392 (Error threshold): Number of errors allowed at every N393 events. • N393 (Event counter): Size of the event window. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19...
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Page 86: Straps
Position 0-1: frame ground and signal ground separated Position 0-2: frame ground and signal ground connected If any of the units is grounded, then the frame ground will be connected to the DM16E1/DM4E1 signal ground. 10.2. E1 Tributary Channel Straps... -
Page 87: E3 Electric Interface Card Straps
10.5. E3 Electric Interface Card Straps DM16E1-E3E cards are provided with straps that allow for the connection of the coaxial cable shield to the frame ground. For further details, see item 7.9. 10.6. Restricted Use Straps The main card has two straps (E14 e E15) which are restricted to use in factory tests. They should always be kept in position 0-2 so as to allow for the adequate functioning of the equipment. -
Page 88: Voice Channel
Type of interface: 2 wires. • Maximum level: 2dBm. • Maximum wavelength: 100 meters. • Voltage for detection of off the hook status: > 10mA. • Nominal voltage of off the hook: 20mA. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 89: Alarms And External Clock
12.2. Alarm Outputs DM16E1/DM4E1 cards are provided with a relay in order to generate alarms. The pinout in the DB9 connector is shown in Table 17. In an alarm situation or in case of power failure, the relay gets pin 6 of DB9 in short with pin 2 of DB9, and pin 1 remains isolated. -
Page 90: Input Of External Clock
12.3. Input of External Clock The DM16E1/DM4E1 cards are provided with a IEC169/13 (or BNC) connector on the rear panel for the connection of an external clock source at 2048kHz (according to G.703). This is used by the E1 interfaces in case of failure in the synchronization recovery of an E1 interface. -
Page 91: Failure Situations
Indication of remote Generates Does not answer generates generates generates alarm Table 20. Failure indication according to G.751 (ITU-T recommendation for E3 multiplexing) 1) Mandatory according to G.751. 2) Optional according to G.751. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 92: Management System
E1 channel to carry out the flow of this information. Only the DM16E1/DM4E1 connected with each other directly (point-to-point, ring or loop) can be managed through this way. For the directly unconnected equipment management, the routing WAN2 port (Frame Relay/PPP) should be used. -
Page 93: Ip Management (Direct Ip Snmp)
Table 13. The parameters selected by terminal, such as agent’s IP address, subnetwork´s mask and Default Gateway’s IP address should be configured before to turn on the equipment to the LAN. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 94: Software
Once the file is located, follow the instructions below to download the software via TFTP. Equipment manufactured by DATACOM and that support upgrades of firmware via TFTP (Trivial File Transfer Protocol) can be simply upgraded via the binary transference of the new firmware. When transference is complete, the multiplexer verifies the integrity of the file received. -
Page 95: Download Via The Terminal Port
It can be downloaded at the following electronic address: http://www.vector.co.jp/authors/VA002416/teraterm.html We recommend that firmware download be made via TFTP, because download via the Terminal port is extremely slow and takes about 15 minutes. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 96: Installation
15.2. Optical Connections This equipment uses non-visible laser radiation emitters. Never look directly to the laser terminals or to the fiber. Exposure to laser emission may cause partial or total loss of sight. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 97: Dm16E1 / Dm4E1 Mixed Operation
15.3. DM16E1 / DM4E1 Mixed Operation The DM4E1 model accepts the same aggregate cards as DM16E1. The aggregate link operates in E3 at 34 Mbits/s. DM4E1 must be seen as an E3 mux similar to DM16E1, except that there are only 4 available E1 interfaces. -
Page 98: Bidirectional Ring Topology
2-fiber cards, monofiber cards and electric interfaces (e.g. for radio links), all in the same ring. This ring also allows aggregate cards to be replaced without losing the data link. Figure 30. Example of bidirectional ring with Cross-Ring topology DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 99: In-Line Topology
All tributaries should be set to pass-through prior to inserting the device into a working line. This avoids excessive errors in the operating links. With this initial setting, other settings may be changed remotely except for some routing and SNMP management configurations. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 100: Optic Modem Topology
Physical connections are available on tributary 1 connections. Tributary 1 locking is automatic. Check if the additional E3 tributary card (DM16E1-E3Ei) is present. Please note that this card is optional. It is installed internally in the same position of the internal bridge. -
Page 101: Interface Converter Topology
Connect power supply, tributaries, aggregates and Ethernet cable if necessary. When connecting the aggregate, be careful to connect TX to RX when using two fibers and 1310 nm to 1550 nm cards when using monofiber. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 102: Transparent Interface Converter Topology
Please note that although a DM4E1 may use an E3 aggregate card and the bridge may run under Nx2M rates, there will only four available interfaces when trunking is directed to the 2M (G.703) tributaries. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... -
Page 103: V.35-V.36/V.11 Interface
For LAN use, connect the Ethernet cable to the 10BaseT (RJ45) interface on the rear panel. 15.15. Service Channel The Service Channel is available on point to point, ring and line topologies, including mixed DM16E1 and DM4E1 rings. All devices included in the topology must have its aggregate already synchronized. -
Page 104: External 2048Kbit/S Clock
More details can be found in chapter 12. 15.18. Terminal Connection Be careful not to introduce a difference of potential between the DM16E1/DM4E1 and the PC or terminal. This will damage the serial interfaces of both the equipment and the terminal. Check item 3.1 before connecting the serial cable to be sure this will not happen. -
Page 105: Straps
Aggregate backup is possible for ring, line, point to point and optic modem topologies. The equipment may perform a series of tests to aid in failure detection or link checking. These also indicate the error ratio in the aggregate. DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19... - Page 106 Phone: +55 51 3358-0100 Support: +55 51 3358-0122 Fax: +55 51 3358-0101 www.datacom.ind.br...
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