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Summary of Contents for ADC Kentrox 78220
- Page 1 ® D-SERV DSU/CSU Operator Manual Stand-alone Models 78220, 78222, 78240 and 78242 Plug-In Models 78210 and 78230 Data Service Units/ Channel Service Units Document 5000211...
- Page 2 Copyright © 1993, 2001 by Kentrox, LLC. All rights reserved. Printed in the U.S.A. Specifications published here are current or planned as of the date of publication of this document. Because we are continuously improving and adding features to our products, Kentrox reserves the right to change specifications without prior notice.
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Page 3: Table Of Contents
Operator's Manual Contents 1 INTRODUCTION ......1 General Description ..... 1 Features . - Page 4 Operator's Manual 3 INSTALLATION ......23 Installation Check List ....23 Installing D-SERV Stand-Alone Units .
- Page 5 Operator's Manual 4 OPERATION ......36 Front Panel Operation ....36 LEDs .
- Page 6 Operator's Manual Figures (cont) Figure 16. Tail Circuit Timing (TCT) Application . . . 32 Figure 17. Cable #95010055 Pin Outs ..32 Figure 18. Cable #95010056 Pin Outs ..33 Figure 19.
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Page 7: Regulatory Information
Operator's Manual REGULATORY INFORMATION ADC Kentrox D-SERV units have been tested by a Nationally Recognized Testing Laboratory (NRTL) and are in compliance with Underwriters Laboratories (UL) standard 1459, Edition 2. FCC PART 15 REQUIREMENTS This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. - Page 8 Operator's Manual FCC PART 68 REQUIREMENTS This equipment complies with Part 68 of the FCC rules. On the bottom of this equipment is a label that contains, among other information, the FCC registration number and ringer equivalence number (REN) for this equipment. Upon request of the telephone company, you should provide the FCC registration number and the ringer equivalence number (REN) of the equipment which is connected to your line.
- Page 9 Operator's Manual Equipment Attachment Limitations CP-01 1.10.1 “NOTICE: The Canadian Department of Communications label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements. The department does not guarantee the equipment will operate to the user’s satisfaction.
- Page 10 Operator's Manual Canadian DOC Requirements This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the Radio Interference Regulations of Canada. Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques Classe A prescrite dans le règlement sur le brouillage Radioélectrique Édicté...
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Page 11: Introduction
D-SERV DSU/CSU generates alarm signals and performs loop backs to aid in the turn up and trouble-shooting of expensive T1 circuits. The D-SERV family of products includes models: 78220 D-SERV DSU/CSU Stand-Alone Unit, -24 to -48 VDC, with a V.35 Data Port... -
Page 12: Features
Operator's Manual Features The D-SERV DSU/CSU is available with the following features: DIP switch selectable configuration ¤ Choice of V.35 Data Port or EIA-530 Data Port ¤ Choice of an internal -24 to -48 VDC or 110 VAC power ¤ supply Normally Open or Normally Closed Alarm Relay contacts ¤... -
Page 13: Specifications
Operator's Manual Specifications Network Interface Line Rate T1 (1.544Mbit/s) Framing SF/ESF (selectable) Line Code AMI/B8ZS (selectable) Bit Stuffing Enable/Disable 15 zero suppression Input Signal DSX-1 from 0dB to -27dB Typical Output Signal DSX-1 with LBO 0 Data Port Interface N x 56 kbit/s or N x 64 kbit/s Bit Rate (N= 1 through 24) Electrical... -
Page 14: Configuration
Operator's Manual CONFIGURATION The majority of configuration options are set through the DIP switches. A few special configuration options are available through jumpers inside the unit. If a DataSMART DSU is connected at the far end of the network some report and alarm configuration options can be configured using the ARC help menu. -
Page 15: Dip Switch Location And Access
Operator's Manual DIP Switch Location and Access The DIP switches are located on the sides of the D-SERV card. Plug-in units have the switches readily accessible. To access the switches on a stand-alone unit: Disconnect all power connections and interface cables ¤... -
Page 16: Dip Switch Configuration Options
Operator's Manual DIP Switch Configuration Options Switch S2 — Data Port Bit Rate Up to 24 Network Interface DS0 channels can be assigned to the data port. Unused channels remain idle. Switch S2-1 sets the channel data rate to 56 Kbit/s or 64 Kbit/s. Switches S2-2 through S2-6 set the number of channels to be activated. - Page 17 Operator's Manual Switch S2 — 56 Kbit/s/Channel Data Port Bit Rate Settings Number Data Rate Channels (Kbit/s) 1344 Down Down Down Down Down Down 1 x 56 Down Down Down Down Down 2 x 56 Down Down Down Down Down 3 x 56 Down Down...
- Page 18 Operator's Manual Switch S2 — 64 Kbit/s/Channel Data Port Bit Rate Settings Number Data Rate Channels (Kbit/s) 1536 Down Down Down Down Down 1 x 64 Down Down Down Down 2 x 64 Down Down Down Down 3 x 64 Down Down Down...
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Page 19: Switch S2 - Data Port Los Processing
Operator's Manual Switch S2 — Data Port LOS Processing Some DTE equipment changes the state of the RTS and/or DTR signal lines on a regular basis which the D-SERV DSU/CSU may interpret as an LOS condition. Options for determining a data port LOS condition are if the RTS signal line is de-asserted, the DTR signal line is de-asserted, or if both of the signal lines are de-asserted at the same time. -
Page 20: Switch S4 - Starting Ds0 Channel Selection
Operator's Manual Switch S4 — Starting DS0 Channel Selection If fewer than 24 channels have been activated, the user can select which channel is first. For example, if four channels have been activated any of the eight channel starting options may be selected. Unused channels remain idle. -
Page 21: Figure 6. S4 Location
Operator's Manual Figure 6. S4 Location... -
Page 22: Switch S4 - Alternating And Contiguous Channels
Operator's Manual Switch S4 — Alternating and Contiguous Channels The D-SERV DSU/CSU can be configured to activate channels sequentially (contiguous) or configured to activate every other channel (alternating). For example, if four channels have been activated and the starting channel is channel 16, contiguous configuration will activate channels 16, 17, 18, and 19. -
Page 23: Figure 7. S4 Location
Operator's Manual Figure 7. S4 Location... -
Page 24: Switch S5 - Advanced Data Port Configuration
Operator's Manual Switch S5 — Advanced Data Port Configuration Data Inversion The D-SERV DSU/CSU allows the operator to invert the data received from the DTE. This allows long strings of zeros to be converted to strings of ones to preserve network T1 pulse density. The DSU at the far end must also be set for Data Inversion. -
Page 25: Figure 8. S5 Location
Operator's Manual Switch S5 — Data Inversion and Data Port Clock Source Function Data Inversion OFF Down Data Inversion ON Internal DP Clock Source Down External DP Clock Source DP Clock Inversion OFF Down DP Clock Inversion ON Figure 8. S5 Location... -
Page 26: Switch S3 - Network Interface Configuration
Operator's Manual Switch S3 — Network Interface Configuration Network Interface Configuration options include Super Frame (SF) or Extended Super Frame (ESF), Alternate Mark Inversion (AMI) or B8ZS coding, bit stuffing disabled or bit stuffing after 15 zeros and Performance Report Message (PRM) disabled or PRM enabled. Switches S3-1, S3-2, S3-3, and S3-4 control the Network Interface Configuration Options. -
Page 27: Switch S3 - Network Interface Clock Source
Operator's Manual Switch S3 — Network Interface Clock Source The D-SERV DSU/CSU can derive the Network Interface 1.544 MHz clock in one of three ways. LOOP derives the clock from the network input. INT derives the clock from a crystal internal to the D-SERV DSU/CSU. -
Page 28: Switch S3 - Alarm De-Activation Time
Operator's Manual Switch S3 — Alarm De-Activation Time When the D-SERV DSU/CSU is in an alarmed state, a certain set period of time must elapse without the occurrence of another alarm before the alarmed state can be cleared. The D-SERV options are 1, 5, 10 and 15 seconds. -
Page 29: Line Build Out (Lbo) Switches
Operator's Manual Line Build Out (LBO) Switches The setting for Line Build Out (LBO) to the network is determined by the carrier and is based on the line distance to the nearest T1 repeater. The different LBO settings allow the user to adjust the attenuation of the signal transmitted out the network port of the D-SERV DSU/CSU. -
Page 30: Jumper Location And Access
Operator's Manual Jumper Location and Access The configuration jumpers are located on the D-SERV card. Plug-in units have the jumpers readily accessible. To access the jumpers on a stand-alone unit: Disconnect all power connections and interface cables ¤ Turn the D-SERV unit over, and using a phillips ¤... -
Page 31: Jumper Configuration Options
Operator's Manual Jumper Configuration Options NOTE: When the jumpers are viewed as in Figure 12 , pin 1 is always to the left. Figure 13. Screws for Case Separation Case Screws... -
Page 32: Configuration Work Sheet
Operator's Manual Configuration Work Sheet Default values are highlighted in Bold Italics . Data Port Configuration Function Switch Options Selection Rate per Channel 56 Kbit/s or 64 Kbit/s # of Channels x Rate Channel Mapping =Frequency ( 1344) 1 ,2, 3, 4, 6, 8, 12 or 16 Starting Channel Alternating or Channel Sequence... -
Page 33: Installation
Operator's Manual INSTALLATION Installation Check List Installing D-SERV Stand-Alone Units Read Operator Manual thoroughly ¤ Select Site for installation ¤ Configure unit with the DIP switches ¤ Complete mechanical installation/mounting ¤ Connect power and ground ¤ (-24 to -48 VDC and 110 VAC operation) Connect Alarm Relay (DC units only) ¤... -
Page 34: Accessories
Operator's Manual Accessories Cables D-SERV Cables Interface Description Length Part Number RJ48C Plug/RJ48C Plug 5 feet 93005141 RJ48C Plug/RJ48C Plug 10 feet 93010141 RJ48C Plug/RJ48C Plug 15 feet 93015141 Network RJ48C Plug/RJ48C Plug 25 feet 93025141 RJ48C Plug/RJ48C Plug 50 feet 93050141 RJ48C Plug/RJ48C Plug 75 feet... -
Page 35: Data Port Adapters
Operator's Manual Data Port Adapters D-SERV Data Port Adapters Description Length Part Number EIA-530 to RS449 10 feet 95010066 (DB25P/DB37P) V.35 Gender Changer 1 foot 78896 (MRAC34P/MRAC34S) Shelf and Mounting Accessories D-SERV Shelf and Mounting Accessories Description Part Number 12-Slot Plug-In Chassis 78260 Wall Mounting Brackets 78035... -
Page 36: Site Selection
Operator's Manual Site Selection Use the following guidelines in selecting a site: (110 VAC only) The installation site should include a ¤ grounded 110 VAC power receptacle. The standard specifications for the following cable distances ¤ as prescribed by the standards documents are: Interface Suggested Maximum Cable Length V.35... -
Page 37: Mounting
Operator's Manual Mounting NOTE: It will be necessary to set the configuration of the D-SERV DSU/CSU before mounting the unit. Refer to Section 2, Configuration for complete configuration information. There are four ways to mount the D-SERV DSU/CSU: Desktop mounting (on any flat surface) ¤... -
Page 38: Electrical Installation
Operator's Manual Electrical Installation CAUTION: Always disconnect all telephone lines before servicing or disassembling this equipment. The power connection with frame ground should be the first electrical connection connected when installing D-SERV units, and the last electrical connection disconnected when removing D-SERV units. Stand-Alone AC Power Connection Plug the power cord on the D-SERV unit into a grounded 115 VAC power receptacle. -
Page 39: Stand-Alone Alarm Relay Connections (Optional)
Operator's Manual Stand-Alone Alarm Relay Connections (optional) The ALM (post 5) and COM (post 6) posts on the six-post connector provide an optional alarm output. The default connection is Normally Open (NO). Circuit or signal failure in the D-SERV DSU/CSU causes a contact to close in the alarm relay. -
Page 40: Self Test
Operator's Manual Self Test At power-up, the D-SERV DSU/CSU runs a complete self test routine that checks all the data paths, I/O ports, read/write memory, and the program checksum. At the end of the self test the LEDs will flash in sequence. -
Page 41: Data Port Connection
Operator's Manual Data Port Connection Data port cables, adapters and their applications are listed on pages 24 and 25. Connect the cable to the data port on the D-SERV back ¤ panel. Secure the connector to the back panel with the screws provided on the connector. -
Page 42: Tail Circuit Timing Set Up
Select the correct cross pinned cable for your application. ¤ Refer to page 25 for cables available from ADC Kentrox. Refer to Figures 16 through 19 for pin outs. The data port source bit rate (from a DataSMART unit or a ¤... -
Page 43: Figure 18. Cable #95010056 Pin Outs
Operator's Manual Figure 18. Cable #95010056 Pin Outs Figure 19. Cable #95010057 Pin Outs Figure 20. Cable #95010058 Pin Outs... -
Page 44: Network Connection
Operator's Manual Network Connection The D-SERV DSU/CSU is connected to the network through an RJ48C eight-pin modular connector. Use Kentrox cable #93xxx141. The xxx refers to cable ¤ length. Cables are available in standard lengths from five feet to one hundred feet long. These cables use a male RJ48C plug at each end. -
Page 45: Figure 21. Network Port Location (Ac Powered Units)
Operator's Manual Figure 21. Network Port Location (AC Powered Units) Network Port Grounding Lug Figure 22. Network Port Location (DC Powered Units) Network Port Grounding Lug Figure 23. RJ48C Pin Designation... -
Page 46: Operation
Operator's Manual OPERATION Front Panel Operation LEDs Front Panel LED Indicators Unit is unpowered Self Test failure Power Unit is powered and Green operational Blinking Red Configuration conflict*** T1 LOS T1 OOF Red Alarm Blinking Red Configuration conflict*** Slow Blinking Red T1 AIS Yellow Alarm Yellow... -
Page 47: Figure 24. D-Serv Front Panel
Operator's Manual Figure 24. D-SERV Front Panel... -
Page 48: Loop Back Switch
Operator's Manual Loop Back Switch The Loop Back Switch has three positions, Line Loop Back (LLB), Off (reset loop back), and Data Port Loop Back (DPLB). Loop backs initiated with the Loop Back Switch cannot be reset by commands from a DataSMART DSU at the far end and override any previously set loop backs from the far end. -
Page 49: Data Port Loop Back (Dplb)
Operator's Manual Data Port Loop Back (DPLB) When DPLB is activated from the Loop Back Switch or from the far end, Data Port Loop Back (DPLB) consists of a combination of Data Port Loop Back and Data Terminal Loop Back (DTLB). It loops the T1 bundle at the Data Port Interface without affecting the rest of the payload (DPLB). -
Page 50: Remote Operation
Operator's Manual Remote Operation You can gain access to the D-SERV DSU/CSU by using a DataSMART DSU via the ESF Facility Data Link (FDL) and the ARC command. The D-SERV DSU/CSU must be fully operational (in frame) and the ESF Data Link must be intact. No alarms or loop backs can be active on the D-SERV unit. -
Page 51: Remote Loop Backs
Operator's Manual The D-SERV menu is divided into an upper section and a lower section. The lower section can be viewed by typing LM. Figure 28. D-SERV Lower Menu (LM) D-SERV T1 DSU/CSU V1.01 Copyright (c) 1992 Kentrox, LLC NAME: PORTLAND, OR - System Status Screen NSR / AHR... - Page 52 Operator's Manual...
- Page 53 Operator's Manual Index AC Power connection, 28 Adapters, 25 Alarm De-Activation Time configuration, 18 Alarm Relay activation, 29 Alarm Relay connections, 29 Alternating Channel configuration, 12 Cables, 24 Configuration Conflicts, 10, 12, 16 Configuration Work Sheet, 22 Contiguous Channel configuration, 12 CTS LED, 36 Data Inversion configuration, 14 Data LED, 36...
- Page 54 Operator's Manual EIA-530 connection, 26, 31 EIA-530 pin assignments, 31 Idle Channels, 10 Installation Check List, 23 Jumper Configuration options, 21 Jumper location, 20 - 21 LBO Switches location, 19 Leg removal, 5 Line Build Out, 19 Line Loop Back, 38 LLB, 38 Loop Back switch, 38 Model numbers, 1...
- Page 55 Operator's Manual RCNLR command, 41 RCNSR command, 41 RED ALARM LED, 36 Remote Loop Back Codes, 3 Remote Loop Backs, 3, 41 RJ48C pin assignments, 34 RS-449 pin assignments, 31 RTS LED, 36 RUNLR command, 41 RUNSR command, 41 RxD LED, 36 Self Test, 30 Shelf and Mounting accessories, 25 Site Selection, 26...
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