Verilink 2100 User Manual
PRISM 2100
T1
CSU
®
TRANSPORT
34-00187
th
Edition
6
i
Copyright
©1997 TxPORT. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed,
stored in a retrieval system, or translated into any language in any form by any means without the written permission of TxPORT.
Reorder # 34-00187
th
Edition, March 1997
6
TxPORT shall not be liable for e rrors co ntained here in or for inci dental or co nsequent ial da mages in conne c-
tion with the furnishing, performance, or use of this material. TxPORT reserves the right to revise this publication from tim e to time and make changes in content without obligation to notify any person of such revision
changes.
Contents of this publication may be preliminary and/or may be changed at any time without notice and shall
not be regarded as a warranty.
Documentation Disclaimer
TxPORT makes no representation or warranties of any kind whatsoever with respect to the contents hereof
and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.
ii
Table of Contents
General 1-1
Introduction 1-1
Features 1-1
Specifications 1-2
Network Interface 1-2
Equipment Interface 1-2
Diagnostics 1-2
Alarms 1-2
Power 1-2
Mechanical 1-2
Environmen t al 1-2
Industry Listings 1-2
FCC Requirements 1-2
Canadian Emissions Requirements 1-3
Warranty 1-3
Ordering Numbers 1-3
TxPORT Customer Service 1-4
Technical Support 1-4
Returns/RMA 1-4
Installation 2-1
Introduction 2-1
Safety Summary 2-1
Unpacking and Inspection 2-1
Supplied Materials 2-1
Mounting 2-1
Standalone Unit 2-1
Chassis Assembly 2-2
Unit Configuration 2-2
Configuration Switch S2 2-2
Sealing Current 2-2
Zero Suppression 2-2
Test Pattern 2 -2
Line Coding 2-2
Test Mode 2-2
Keep Alive 2-3
Configuration Switch S3 2-3
Network LBO 2-3
DSX Level 2-3
Line Code 2-3
Remote Loop 2-3
ACO/Alarm Card (Optional) 2-3
DTE Connection 2-4
DB-15 Connec tion 2-4
Network Connection 2-6
Alarm Connection (Optional) 2-6
Standalone Unit 2-6
Chassis Unit 2-6
Power Connection 2-7
Standalone Unit 2-7
Chassis Unit 2-7
Redundant Power Source 2-7
Single Power Source 2-7
Dual Power Source 2-7
Operation 3-1
Introduction 3-1
Front Panel Descriptions 3-1
General Status Indicators 3-1
Alarm Controls and Indicators 3-1
Test Controls and Indicators 3-1
Front Panel Testing 3-2
Test Switch 3-2
Test Access Jacks 3-2
NET 3-2
MON 3-2
DTE 3-2
iii
iv
1. General
Figure 1-1 TxPORT 2100 CSU
Introduction
TxPORT’s 2100 CSU (channel service unit) is an advanced
frame transparent unit providing an interface between the
customer premises equipment (CPE) and the carrier T1
facilities. The unit is compatible with all T1 carrier transmission equipment and is designed to comply with all
industry standard CSU specifications. The 2100 CSU is
responsible for providing the proper electrical interface to
the T1 circuit and for shaping and regenerating the 1.544
Mbps signal.
The CSU works with any T1 line format and is line code
transparent to unframed, D4, and ESF framing formats.
Optionally, the CSU provides AMI /B8ZS conversion from
the DTE to the facility and B8ZS/AMI conversion from the
facility to the DTE. The unit monitors transmission for bipolar violations and maintains the pulse density of the
transmitted signal.
The CSU’s front panel has features which aid in quick fault
isolation. Eleven LED indicators display status, alarm, and
test conditions. A DIP switch allows for the quick configuration of operation and test parameters. Test jacks allow
bridged monitoring of th e passed si gnal and sign al insertion
toward the network or the DTE. A test switch activates local
and remote loops and controls the internal BERT generator
and comparator.
Power options for the CSU include line or local -24/-48
VDC power. Sealing current can be provided for dry spans.
Network and DTE connections are made through RJ-48C
jacks.
The CSU is available as a stand - alone unit or for use in a
multi -u nit chassis holding up to 12 CSUs. The chassis can
consolidate the CSU requirements of an entire network
node. Power supplies are available from TxPORT to meet
any requirement, including full redundancy.
• Selectable alarms with alarm indicators and optional alarm
relay contacts
• Selectable facility ALBO levels and DTE DSX levels
• Selectable sealing current source
• Line or local -48 VDC powering
2100
CSU
ACO SW
FAR
®
ACO
BPV
LOS
AIS
LOOP
DENSITY
SET
RESET
ERR
S2
7654321
LOC
TRANSPORT
Features
• Available as a stand-alone unit or a nest mounted unit
• Transparent to framing; supports ESF or D4 framing
• AMI or B8ZS line coding; B8ZS transparency
• Front panel test access jacks and test switch
• Complete diagnostic capabilities including loopbacks and
built-in BERT
FRM
NET
MON
TO
DTE
TO
NET
MON
FRM
DTE
General 1-12100 CSU
Specifications
Network Interface
Line Rate: 1.544 Mbps, ±50 ppm for internal
clock, ±200 bps in through mode
Line Framing: D4 or ESF (transparent)
Line Code: AMI or B8ZS
Input Signal: DS1, 0 to -30 dB ALBO
Connection: RJ-48C jack, 100 Ω (± 5%)
Output Signal: 3.0 V (±15%) base-peak into 100 Ω
Line Build Out: 0, -7.5, -15, and -22.5 dB attenuation
Line Protection: 1000 V lightning, fused input/output
Sealing Current: 14 mA, switch selectable, 3500 Ω in
series with -48 VDC
Keep Alive: Line loopback or all ones (framed or
unframed)
Jitter Control: per TR62411 and T1.403
Pulse Density: 15 or 175 zeros
Equipment Interface
Line Rate: 1.544 Mbps, ± 50 ppm for internal
clock, ± 200 bps in through mode
Line Framing: D4 or ESF (transparent)
Line Code: AMI or B8ZS
Input Signal: DSX1 to - 6 dB
Connection: RJ-48C jack, 100 Ω (± 5%)
Output Signal: Selectable DSX1 level from 0 to 655
feet in six incremental levels
Line Protection: 1000 V lightning
Diagnostics
Loopbacks: Line loopback on network and DTE
interface
Network BERT: 1 in 8 (B8ZS), 3 in 24 (AMI), Clear,
selectable framed or unframed pattern
Alarms
Network Activation:BPVs, all zeros, AIS
DTE Activation: Low density (>15 or > 175 zeros)
Reporting: Front panel LEDs and alarm contacts
Contact Ratings: UL 120 mA @ 110 VAC or 110 VDC
Connection: Terminal strip
Power
Line Power: 60 or 140 mA, 33 V max
Local Power: 19 VDC to 60 VDC, 4.3 W, 15 BTU
Connection: Terminal strip
Mechanical
Mounting: desktop, wall, horizontal rack,
vertical rack
Dimensions: 1.72" W, 6.8" H, 10.5" D
Weight: 2 lbs.
Environmental
Operating Temp: 0° to 50° C(32° to 122°F)
Storage Temp: -20° to 85° C(-4° to 185°F)
Humidity: 95% max (non-condensing)
Industry Listings
FCC Compliance: Part 15 Subpart B, Class A
FCC Part 68 Reg: FXKUSA-74937-DE-N
UL Approved: E 110448
CSA Certified: LR 98859
DOC/CSO3: 1653 5331 A
FCC Requirements
WARNING: Changes or modifications
!
to this unit not expressly appr oved by the
party responsible for compliance could void
the user’ s authority to o perate the equipment.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:
• This device may not cause harmful interference.
• This device must accept any interference received, including
interference that may cause undesired operation.
This equipment has been tested and found to comply with
the limits for a Class A digital device, pursu ant to Part 15 o f
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment
is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and
if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a resid ential area is
likely to cause harmful interference. The user will be
required to correct the interference at his own expense.
Notice to Users of 1.544 Mbps Service: The following
instructions are provided to ensure compliance with FCC
Rules, Part 68:
1. All direct connections to T1 lines must be made using
standard plugs and jacks.
2. Before connecting yo ur unit, you must inform the local
telephone company of the following information:
Port ID: SS-650810-A-NF
REN/SOC (Service Order Code): 6.0 N
1-2 General
2100 CSU
Loading...