CTC Union ETU-01A User Manual
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CTC Union ETU-01A User Manual

CTC Union ETU-01A User Manual

G.703 fractional e1 dsu/csu, single port, modular standalone/rack type, datacom v.35, x.21, rs-530, rs-449, rs-232, nrz, g.703 64k co-directional ethernet 10/100base-tx bridge or router, snmp option
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ETU-01A
G.703 Fractional E1 DSU/CSU
Single Port, Modular
Standalone/Rack Type
Datacom V.35, X.21, RS-530, RS-449, RS-232, NRZ
G.703 64K Co-directional
Ethernet 10/100Base-TX Bridge or Router
SNMP Option

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  • Page 1 ETU-01A G.703 Fractional E1 DSU/CSU Single Port, Modular Standalone/Rack Type Datacom V.35, X.21, RS-530, RS-449, RS-232, NRZ G.703 64K Co-directional Ethernet 10/100Base-TX Bridge or Router SNMP Option...
  • Page 3 CTC Union Technologies makes no warranty, representation, or guarantee regarding the suitability of its products for any particular purpose, nor does CTC Union assume any liability arising out of the application or use of any product and specifically disclaims any and all liability, including without limitation any consequential or incidental damages.
  • Page 4 ETU-01A/DC ETU-01A/AD (Dual AC+DC) This document is an updated release manual. Please check CTC Union's website for any newer update manual or contact us by E-mail at info@ctcu.com. Please address any comments for improving this manual or to point out omissions or errors to marketing@ctcu.com. Thank you.

  • Page 5: Table Of Contents

    Table of Contents Chapter 1. Introduction .....................7 1.1 General ........................7 1.2 Functional Description....................9 1.3 System Timing Considerations................. 10 1.4 Typical System Applications ..................11 1.5 E1 signal structure ....................11 1.6 E1 line signal......................12 1.7 Technical Specifications................... 13 Chapter 2. Installation .....................19 2.1 General ........................19 2.2 Site Preparation .......................19 2.3 Mechanical Assembly ....................
  • Page 6 Table of Contents Chapter 4. Control Port Operation................. 39 4.1 General........................39 4.2 Terminal Connection ....................39 4.3 Menu System Detail ....................40 Chapter 5. Loop Back and BERT Testing ..............55 5.1 General........................55 5.2 Status Indicators and Messages................55 5.3 USER Activated Loop Back.

  • Page 7: Chapter 1. Introduction

    The ETU-01A provides an economical digital access solution for E1 and Fractional E1 network services. User replaceable Data I/F Modules provide a wide range of industry standard interfaces to DTE devices, which may be linked to an ETU-01A at data rates of 56Kbps to 2048Kbps.
  • Page 8 Chapter 1. Introduction 3. ETU/TTU-449 RS-449 Module: Provides one fully compliant EIA RS-449 interface by placing an adapter cable on the ETU/TTU-530 module and providing a male "D-Sub" type 37 pin connector. Operates at any n56/n64 fractional or unframed E1 speed. 4.

  • Page 9: Functional Description

    BERT testing. The operator at either end of the line may test both the ETU-01A and the line in the remote digital loop back mode. The loop back is controlled by local LCD display setting, serial console, optional SNMP or by the DTE interface for V.35, RS-232 and RS-530.

  • Page 10: System Timing Considerations

    The ETU-01A E1 link receive path always operates on the receive clock. The ETU-01A recovers the receive clock from the received E1 link data signal. The source of the ETU-01A E1 link transmit clock may be selected by the user. The following E1 link transmit timing modes are...

  • Page 11: Typical System Applications

    Chapter 1. Introduction 1.4 Typical System Applications General In a typical application (Figure 1-1), the ETU-01A is used in a point-to-point connection. The synchronous data channels of each host are connected over an E1 line. Figure 1-1 Point-to-Point Application Fractional E1 data service is based on the assumption that the user data rate is a fraction of the available E1 bandwidth, in multiples of 56K or 64K.

  • Page 12: E1 Line Signal

    The HDB3 code substitutions provide high pulse density so that the receiving equipment is able to maintain synchronization with the received signal. E1 link line coding The ETU-01A supports two E1 line codes: AMI coding. HDB3 coding. E1 framing formats...

  • Page 13: Technical Specifications

    Chapter 1. Introduction 1.7 Technical Specifications E1 link Framing -Unframed/Framed -CCS (PCM31)/CAS (PCM30) -CRC4 ON/OFF Bit Rate 2.048 Mbps Line Code -AMI -HDB3 Line Impedance -75 ohms -120 ohms Relative Receive Level 0 to -43dB (long haul) "Pulse" Amplitude -Nominal 2.37V±10% for 75 ohms -Nominal 3.00V±10% for 120 ohms ±0.1V "Zero"...
  • Page 14 Chapter 1. Introduction User Data Channels Interface Types -V.35, X.21, RS-530, RS-449, RS-232, -G.703/64K Co-directional, NRZ/BNC, -10Base-T Bridge, and 10/100Base-T Router I/F Connectors V.35 I/F 34 pin, M-block Female X.21 I/F 15 pin, D-type Female RS-530 I/F 25 pin, D-type Female RS-449 I/F 37 pin, D-type Male (adapter cable on RS-530) RS-232 I/F...
  • Page 15 Chapter 1. Introduction Setup/Configuration LCD Display 2 rows of 16 Characters Pushbutton Switches -ESC -Left Arrow -Right Arrow -Enter LED indicators POWER Green Power Sig Loss E1 link signal loss SYNC Loss Red E1 link sync loss Alarm E1 link alarm, include: BPV error / CRC4 error / Frame slip / All ones(AIS) / Remote alarm Yellow Transmit data (data port)
  • Page 16 Chapter 1. Introduction Diagnostic tests Test loops -E1 local analog loop back -E1 local digital loop back -E1 local payload loop back -E1 remote analog loop back -E1 remote payload loop back -Data port local analog loop back -Data port local digital loop back -Data port V.54 loop back BERT test pattern -511...
  • Page 17 Chapter 1. Introduction Power supply Voltage AC Model: 90 ~ 250 VAC (universal switching type) DC Model: 18 to 72 (-18 to -75VDC) AD Model: Both AC and DC dual power model Frequency 47 to 63 Hz for AC power Power consumption <...
  • Page 18 Chapter 1. Introduction This page left blank intentionally. May 2011...

  • Page 19: Chapter 2. Installation

    The outlet should be capable of furnishing 90 ~ 250 VAC or 18VDC to 72VDC for DC model unit. The AD model supports AC plus DC power simultaneously for redundant 1+1 power operation. Allow at least 10 cm (4 inch) clearance at the rear of the ETU-01A for power, signal lines and interface cables.

  • Page 20: E1 Line Side

    Chapter 2. Installation Figure 2-2 ETU-01A DC rear panel, Option: DCE (V.35) Figure 2-3 ETU-01A AC+DC rear panel, Option: DCE (V.35) 2.5 E1 Line side DB-15 Connector (balanced 120 Ohm) The pin assignment for DB-15 connector follows AT&T Pub 62411:...

  • Page 21: Data Port Side

    Notice: Cable and Termination Use a shielded twisted pair cable between the ETU-01A and the DTE device. The receivers on the ETU-01A are 100 Ohm terminated (For X.21 and RS-530). If problems are encountered with the connection to the DTE interface, make sure that the DTE interface is terminated correctly.

  • Page 22: Dip Switches And Jumper Settings

    ALL OFF E1 line impedance set 75 Ohm ALL ON This is the only internal DIP switch setting required for the ETU-01A. All other settings are performed through LCD or Console user interface. Chassis GND Jumper Set this jumper to "CON" to connect logic ground to chassis. Set to "DIS" to separate logic and chassis grounds.

  • Page 23: Chapter 3. Lcd Operation

    The ETU-01A has to be adapted to new operational requirements. Diagnostic loops are required. The ETU-01A is turned on when its AC power cord is connected to an AC power outlet and the power switch is turned to the ON position. The ETU-01A will perform its internal POST (power on self test) to verify CPU, RAM, ROM and FPGA integrity.

  • Page 24: Led Status Indicators

    The POWER indicator will be lit, indicating that the ETU-01A is on. If the LCD display back light is set to either AUTO or ON, it will be lit. Verify the ETU-01A is in operation by checking that the front panel LEDs match the following indicator conditions:...
  • Page 25 D I S P L A Y & S E T Display and set the internal real time clock of the ETU-01A. < M I S C E L L A N E O U S > S E T U P Set the LCD password and mode of the LCD backlight either Off, On, or Auto.

  • Page 26: System Parameter Detail

    P A R A M E T E R Press ENTER, MASTER TIMING sub-menu will be displayed. Master Timing sets the source for the timing in the ETU-01A. The default is Recovery timing (from E1 received signal). < M A S T E R T I M I N G >...

  • Page 27: E1 Line Parameter Detail

    This function will not work if E1 framing is set to Unframed. It will also only work when connected to another ETU-01A or to ERM01 E1 concentrator. From the REMOTE CONFIG sub-menu press ESC to return to the SYSTEM PARAMETER screen.

  • Page 28: Timeslot Mapping Detail

    Chapter 3. LCD Operation Press ENTER and the E1 LINE sub-menu will be displayed. E1 Line sets the frame type, CRC mode, cascade mode, idle code, RAI state and Line Code for the E1 link of the ETU-01A. < L I N E >...

  • Page 29: Data Port Parameter Detail

    Chapter 3. LCD Operation 3.4.5 Data Port Parameter Detail The following shows the setup screens under the Data Port Parameter Screen. DATA PORT PARAMETER < D A T A P O R T > P A R A M E T E R Press ENTER R S 5 3 0 R E C O...

  • Page 30: Loop Back Parameter Detail

    Chapter 3. LCD Operation Use the arrow key to move on to the next parameter setting for CTS. < D A T A P O R T > C T S : O N Press ENTER to move the cursors to the CTS field. Select either ON or RTS using the arrow keys, then press ENTER to effect the change.

  • Page 31: Bert Test Detail

    Chapter 3. LCD Operation 3.4.7 BERT Test Detail The following displays show the setup screens under the BERT test Parameter Screen. BERT TEST PARAMETER < B E R T T E S T > P A R A M E T E R Press ENTER <...

  • Page 32: Date & Time Display & Set Detail

    3.4.9 Date & Time Display & Set Detail The ETU-01A has a built-in realtime clock (RTC) that does time keeping even when the unit has been powered off. The following shows the setup screens under the Date & Time Parameter Screen.

  • Page 33: Miscellaneous Setup Detail

    Chapter 3. LCD Operation 3.4.10 Miscellaneous Setup Detail The following shows the setup screens under the Miscellaneous Parameter Screen. Miscellaneous Parameter Display < M I S C E L L A N E O U S > S E T U P Press ENTER.

  • Page 34: Performance Display Detail

    To exit the performance display, press ESC. To clear the data registers, press ENTER on the Reset page. This completes the detailed discussion of the function setup and operation of the ETU-01A via the front panel LCD display. May 2011...
  • Page 35 Chapter 3. LCD Operation ETU-01A Menu System Overview SYSTEM RECOVERY MASTER PARAMETER INT OSC TIMING DTE1 DTE2 SEND DTE3 MAPPING REMOTE MAPPING CONTROLLED MODIFY 0000 PASSWORD Default disabled E1 LINE FRAME PARAMETER UNFRAME CRC-4 CASCADE IDLE CODE (00~FF) ENABLE DISABLE...
  • Page 36 Chapter 3. LCD Operation ETU-01A Menu System Overview (cont.) BERT TEST FUNCTION PARAMETER CHANNEL DATA PATTERN 2047 2e15-1 2e20-1 QRSS 2e23-1 ALL 1 ALL 0 0011 3in24 1in16 1in8 1in4 ERR INS NONE SINGLE [ENTER] 10e-1 10e-2 10e-3 10e-4 10e-5...
  • Page 37 Chapter 3. LCD Operation ETU-01A Menu System Overview (cont.) ALARM BUFFER DISPLAY DISPLAY ALARM BUFFER DISPLAY REMOTE ALARM BUFFER CLEAR ALARM BUFFER PERFORMANCE BPV CNT DISPLAY ERR SECS LONG ES LONG UAS CURR SEC LONG SEC May 2011...
  • Page 38 Chapter 3. LCD Operation This page left blank intentionally. May 2011...

  • Page 39: Chapter 4. Control Port Operation

    "HyperTerminal ™". Connection of the ETU-01A to the computer is accomplished by a DB9-pin one-to-one, male to female cable. The ETU-01A acts as a DCE to the PC’s DTE communications port. Set the properties to match the ETU-01A control port defaults as follows: Baud=9600, Data bits=8, Parity=None, Stop bits=1, and handshaking =None and use a direct connection to the PC's COM port.

  • Page 40: Menu System Detail

    This is the first screen seen after connecting. Note that the first two items, "Display" and "Define" deal with all the unit's configuration settings. The Display item will browse settings for viewing only, while under Define, all parameters may be both viewed and changed. ******************************************** **** CTC UNION TECHNOLOGIES CO.,LTD **** **** ETU-01A/SNMP TERMINAL MODE...
  • Page 41 Chapter 4. Console Port Operation The first selection of system parameters is the Timing parameter, so let’s enter 1. << Define Master Timing Parameter >> Master Timing : RECOVERY Recovery Internal OSC DTE 1 DTE 2 DTE 3 Enter 1-5 or Press "ESC" to previous menu. The current master timing is shown as "Recovery".
  • Page 42 In Cascade mode, the unused timeslots are not filled with idle code. Instead, they pass through their received data transparently. This allows for 'Drop&Insert' or Cascading of multiple ETU-01A units to build up a type of multiplexer where the entire E1 bandwidth can be divided between different logical units.
  • Page 43 Chapter 4. Console Port Operation Press ESC and enter 4 to define the Idle code for the E1 line. << Define E1 Line Idle Code >> Idle Code : 7E Enter Code (00~FF) : Enter the new Idle code with the hex value 00~FF, or to exit, press ESC. Press ESC and enter 5 to enable or disable RAI (Remote Alarm Indication) for the E1 line.
  • Page 44 Item 1 supports the immediate and local setting of timeslots in this unit. Item 2&3 are both used to configure a remote ETU-01A, if it is already linked with the local unit by E1. The E1 must be framed, FAS or CAS, in order to support the remote in-band setting. Item 2 sends the entire timeslot mapping to the remote unit.
  • Page 45 Selecting item 2 will attempt to take the defined time slot mapping for the local unit and send it to the remote ETU-01A unit. In this way, the bandwidth can be controlled from the local unit. The E1 must be in SYNC, the framing matched (cannot be unframed) and the remote unit must already be configured to accept remote assignment.
  • Page 46 Chapter 4. Console Port Operation WAIT..OK The message "WAIT…" will be displayed while the data is being transferred. "OK" will display following successful transfer. Pressing ESC will take us back to the Define System Parameter menu. << Define System Parameter >>...
  • Page 47 Enter 1-3 or Press "ESC" to previous menu. This is where we configure the type of unit that will remote control this ETU-01A unit. We can select control from another ETU-01A, from the ERM01 E1 concentrator rack, or we can turn OFF remote control so this device won't support in-band management.
  • Page 48 The SNMP agent is a 32 bit embedded processor system that runs a kernel, network layer and SNMP process that is linked to the ETU-01A hardware. When used with proprietary MIB 2 file, a network management software will be able to configure all settings, read performance and alarm information, and receive meanings of unsolicited trap (alarm) messages from the ETU-01A.
  • Page 49 The TFTP server IP is the IP address of the server used to hold the upgrade image and from which the ETU-01A SNMP will download the upgrade image during an upgrade process. The TFTP Server Path contains the filename (case sensitive) of the upgrade image.
  • Page 50 There are two items under the Define Test Mode Function menu. The loop back test option sets up the various loop back locations available on the ETU-01A. The BERT test uses the internal pattern generator and pattern reader to compare data patterns and return error rate results.
  • Page 51 Chapter 4. Console Port Operation Select LoopBack test item from the Define Test Mode Function menu. << Define LoopBack Test Port >> E1 Line LoopBack : LOOPBACK OFF Data Port LoopBack : LOOPBACK OFF E1 Line Data Port Enter 1-2 or Press "ESC" to previous menu. Select item 1, E1 Line.
  • Page 52 Result Enter 1-5 or Press "ESC" to previous menu. The ETU-01A's internal pattern generator supports a wide range of telecommunications standard test patterns. Select the pattern under the menu item "3" Pattern. Select the "channel", E1 or Data Port, to send the test pattern and receive pattern for comparison using item "2" Channel.
  • Page 53 Reset Data to Factory Default >> Press "ENTER" to confirm, "ESC" to previous menu. Pressing Enter again on the above screen will reset the ETU-01A to factory default. The default settings are as follows: Master Timing = Recovery Framing = CCS (PCM31)
  • Page 54 Enter 1-6 to select function. To exit the console terminal mode. press "6". The terminal connection will be dropped and the following will be displayed. ETU-01A TERMINAL MODE IS DISCONNECTED This completes the examples of console terminal mode operation for the ETU-01A. May 2011...

  • Page 55: Chapter 5. Loop Back And Bert Testing

    (utilizing the V.54 standard), the front panel LCD interface, from the console terminal menu or via SNMP (when option is installed). The ETU-01A offers bit error rate testing on both the synchronous data channel and the E1 line, using a locally generated pseudo-random sequence.
  • Page 56 Chapter 5.Loop Back & BERT Testing Display: The ETU-01A maintains an alarm buffer. The buffer can store an alarm event of each type below along with the time of occurrence. A maximum of 256 alarms may be stored and displayed on the front panel LCD through the ALARM BUFFER DISPLAY menu or the terminal connected to the Control Port.

  • Page 57: User Activated Loop Back

    (not recommended for Ethernet bridge or router modules). This loop back fully tests the local ETU-01A operation and the connections to the local DTE. During this loop back, the ETU-01A E1 line sends an unframed "all ones" signal to the remote equipment.
  • Page 58 E1 line local digital loop back is performed by connecting the E1 link receive signal to the output of the transmit path, in the DSU. This loop back test checks the performance of the local ETU-01A, the remote ETU-01A and the connections between them, as shown in Figured 5-2. LOCAL ETU-01A...
  • Page 59 The remote unit then connects its E1 link receive signal to the output of the transmit path, before the Channel Service Unit (CSU). This loop back test checks the performance of the local ETU-01A, the remote ETU-01A and the connections between them, as shown in Figured 5-4.
  • Page 60 Data Port local analog loop back is performed by connecting the data channel transmit data (TD) to the input of the receive path (RD) before the CSU, as shown in Figure 5-6. The test signal is provided by the local DTE. LOCAL ETU-01A User Data...
  • Page 61 The remote unit then connects its local data channel receive data (RD) to the channel transmit input (TD). This loop back test checks the performance of the local ETU-01A, the remote ETU-01A and the connections between them, as shown in Figured 5-8.
  • Page 62 DTE over the E1 link, as shown in Figure 5-10. Additionally, you may use the local site’s E1 link remote analog, remote payload or Data Port V.54 loop back to return the data back to the local DTE. LOCAL ETU-01A REMOTE ETU-01A Generator...

  • Page 63: Chapter 6. Snmp Option

    Chapter 6. SNMP Option Chapter 6. SNMP Option 6.1 Installation Installation of the SNMP optional feature should be performed by qualified service personnel only. As with all electronic devices that are powered from an AC line, dangerous voltages may be present inside the unit.
  • Page 64 Chapter 6. SNMP Option IC reference mark Figure 6-1: Firmware Chip Location Figure 6-2: SNMP Installation Exploded View May 2011...

  • Page 65: Simple Network Management Protocol

    IP networks. Network management allows you to monitor and control network devices remotely using conventional computer network technology. The SNMP management functions of the ETU-01A are provided by an internal SNMP agent, which utilizes out-of-band communication over standard 10/100BASE-T Ethernet. The SNMP agent is compliant with the SNMPv1/v2C/v3 standards.

  • Page 66: The Management Information Base

    The assigned number designates the top of an enterprise-specific sub-tree of non-standard MIB's. Within this context, CTC Union has been assigned the enterprise number 4756. Under this scheme, the path to CTC Union’s Enterprise branch would be: iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).ctcu(4756)

  • Page 67: Snmp Communities

    Chapter 6. SNMP Option 6.2.5 SNMP Communities To enable the delimitation of management domains, SNMP uses "communities". Each community is identified by a name, which is an alphanumeric string of up to 255 characters defined by the user. Any SNMP entity (this term includes both managed nodes and management stations) is assigned by its user a community name.
  • Page 68 Chapter 6. SNMP Option 6.3 Breakdown of MIB for ETU-01A Branch Leaf object Set Parameters 0. systemEntry 0. masterTimin 0. Recovery 1. Internal OSC 2. DTE1 (transparent) 3. DTE2 (external) 4. DTE3 1. sendMapping 2. remoteConfig 1. e1LineEntry 0. frame 0.
  • Page 69 Chapter 6. SNMP Option Branch Leaf Set Parameter 5. CONTROL 0. SPEED 0. 300 bps PORT 1. 600 bps PARAMETER 2. 1200 bps 3. 2400 bps 4. 4800 bps 5. 9600 bps 6. 19200 bps 6. ALL CHANNEL 1. Loop back Off 2.
  • Page 70 Chapter 6. SNMP Option Branch Leaf Set Parameter 0. LCD LIGHT 0. AUTO MISCELLANEOU 1. ON 2. OFF 1. RESET TO Press [ENTER] DEFAULT (W) Send ASCII 13 10. ALARM 0. DISPLAY See Text 5 BUFFER ALARM 1. CLEAR ALARM Press [ENTER] 13 11.
  • Page 71 Chapter 6. SNMP Option Text 5: Alarm Buffer trap code: Code Error message Error status On/Off Alarm Buffer Empty 0:None Power Turn 1:On 2:Off Main Link Signal Loss 1:On 2:Off Main Link SYNC Loss 1:On 2:Off Main Link AIS 1:On 2:Off Main Link RAI 1:On 2:Off Main Link MRAI...
  • Page 72 Chapter 6. SNMP Option ETU01-A SMNP Trap codes Code Error message Error status On/Off Alarm Buffer Empty 0:None Power Turn 1:On 2:Off Main Link Signal Loss 1:On 2:Off Main Link SYNC Loss 1:On 2:Off Main Link AIS 1:On 2:Off Main Link RAI 1:On 2:Off Main Link MRAI 1:On 2:Off...

  • Page 73: Appendix A. I/F Modules

    D-Sub type connector. The alarm relay contacts also share the same connector. If you need to use these contacts, construct a custom "Y" cable. Pin Designation Direction Function TTIP From ETU-01A Transmit data ↔ Frame ground RTIP To ETU-01A Receive data ↔...

  • Page 74: X.21 User Data Channel Connector

    Appendix A. I/F Modules A.2 X.21 User Data Channel Connector When the ETU-01A is ordered with an X.21 interface, the physical interface is a 15-pin female D- Sub type connector wired in accordance with Table A-3. SIGNAL PIN CIRCUIT DIRECTION DESCRIPTION...

  • Page 75: V.35 User Data Channel Connector

    Appendix A. I/F Modules A.3 V.35 User Data Channel Connector When the ETU-01A is ordered with a V.35 interface, the physical interface is a 34-pin female M- Block (Winchester) type connector wired in accordance with Table A-4. SIGNAL PIN CIRCUIT DIRECTION DESCRIPTION...

  • Page 76: Rs-530 User Data Channel Connector

    Appendix A. I/F Modules A.4 RS-530 User Data Channel Connector When the ETU-01A is ordered with an RS-530 interface, the physical interface is a 25-pin female D-Sub type connector wired in accordance with Table A-5. SIGNAL PIN CIRCUIT DIRECTION DESCRIPTION FUNCTION ↔...

  • Page 77: Rs-232 User Data Channel Connector

    Appendix A. I/F Modules A.5 RS-232 User Data Channel Connector When the ETU-01A is ordered with an RS-232 interface, the physical interface is a 25-pin female D-Sub type connector wired in accordance with Table A-6. SIGNAL PIN CIRCUIT DIRECTION DESCRIPTION...

  • Page 78: Rs-530 To Rs-449 Adapter Cable

    Appendix A. I/F Modules A.6 RS-530 to RS-449 Adapter Cable When the ETU-01A is ordered with a RS-449 interface, an RS-530 module and adapter cable provide the proper interface. The physical interface is a 37-pin male D-Sub type connector wired in accordance with Table A-7.

  • Page 79: G.703/64K Co-Directional Connector

    Appendix A. I/F Modules A.7 G.703/64K Co-directional Connector When the ETU-01A is ordered with a G.703/64K interface, the physical interface is a 15-pin female D-Sub type connector wired in accordance with Table A-8. SIGNAL DIRECTION DESCRIPTION FUNCTION Protective Chassis ground.

  • Page 80: Et100 10/100Base-Tx Ethernet Bridge Interface

    Appendix A. I/F Modules A.9 ET100 10/100BASE-TX Ethernet Bridge Interface When the ETU-01A is ordered with an ET100 Interface, the unit is not only an access unit for E1, but also becomes a high performance WAN bridge for 10/100Base-TX Ethernet over E1.

  • Page 81: Et100R 10/100Base-Tx Ethernet Router

    Appendix A. I/F Modules A.10 ET100R 10/100Base-TX Ethernet Router When the ETU-01A is ordered with an ET100R Interface, the unit is not only an access unit for E1, but also becomes a high performance router for 10Base-T or 100Base-TX Ethernet LAN connection.
  • Page 82 Appendix A. I/F Specifications This page left blank intentionally. May 2011...

  • Page 83: Appendix B. Performance Monitoring

    However, the ETU-01A now becomes capable of providing statistics for bipolar violations (BPV). B.2 Performance Monitoring When the CRC-4 function enabled, the ETU-01A stores El line statistics for the E1 link interface. This permits real-time monitoring of data transmission performance.
  • Page 84 Appendix B: Performance Monitor Current errored seconds (ES) An errored second is any second containing one or more CRC error events, or one or more controlled slip events. The data is collected for the current 15-minute interval. Current unavailable seconds (UAS) An unavailable second is any second in which a failed signal state exists..

  • Page 85: Appendix C. Rack Mounting Option

    Appendix C: Rack Mounting Option Appendix C. Rack Mounting Option All Standalone/Rack Series units have the option of adding standard EIA 19" rack mount capability. Two rack mount options provide for either mounting a single unit (half space) in a rack or for mounting two units in tandem (full space).
  • Page 86 Appendix C: Rack Mounting Option In order to save rack mount space, units may be mounted in tandem. Please refer to the following drawing examples for this application. Figure C-2: Tandem Units Mounting (Exploded) Figure C-3: Tandem Units Mounting Detail The tandem kit includes two (2) rack mount adapters, one (1) each of inner and outer central mounting adapters, twenty (20) 3x8mm self-tapping screws, and four (4) #12-24x0.5"...
  • Page 87 NOTES: May 2011...
  • Page 88 NOTES: May 2011...
  • Page 89 CTC Union Technologies Inc Fax:(886) 2 27991355 Tel:(886) 2 26591021 Attn : Technical Support Division E-mail: info@ctcu.com From Company: Taipei, Taiwan Name: Tel: ( Fax:( MODEL: ETU-01A/AC ETU-01A/DC ACTIVITY: As attached in DIP and configuration setting table SYS CONFIGURATION: Question:...
  • Page 90 Technical Inquiry Form MODEL No.: ETU-01A/AC ETU-01A/DC Please fill in the configuration settings with ' ' marks into the following table. Send it to us by fax, and we will reply to you immediately. FUNCTION Parameter Your setting Suggested System Parameter...

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