PairGain HiGain HMS-318 List 2B User manual

HIGAIN CO MANAGEMENT SHELF
PAIRGAIN TECHNOLOGIES, INC.
ENGINEERING SERVICES TECHNICAL PRACTICE
SECTION 150-318-122-01
Revision History of This Practice
Revision 01—December 22, 1997
A) Initial Release
Model List Number Part Number
HMS-318 2B 150-1129-22

Revision 01 December 22, 1997 150-318-122-01
ii PairGain Engineering - Plant Series HMS-318 List 2B
©Copyright 1997 PairGain Technologies, Inc.
PairGain and HiGain are registered trademarks of PairGain Technologies, Inc.
Information contained in this document is company private to PairGain Technologies,Inc., and shall not be modified, used, copied,
reproduced or disclosed in whole or in part without the written consent of PairGain.
Other product names mentioned in this practice are used for identification purposes only and may be trademarks or registered
trademarks of their respective companies.

150-318-122-01 December 22, 1997 Revision 01
HMS-318 List 2B PairGain Engineering - Plant Series iii
USING THIS TECHNICAL PRACTICE
Two types of messages, identified by icons, appear in the text.
TABLE OF CONTENTS
Overview ____________________________________________________________________________ 1
Shelf Descriptions..............................................................................................................................1
Shelf Connections..............................................................................................................................2
Installation___________________________________________________________________________ 5
Site Requirements..............................................................................................................................5
Shelf Installation................................................................................................................................5
Signal and Pin Assignments_____________________________________________________________ 6
Certification and Warranty____________________________________________________________ 13
VCCI Certification...........................................................................................................................13
UL Listing........................................................................................................................................13
Warranty...........................................................................................................................................13
Technical Support ___________________________________________________________________ 14
Phone or Fax ....................................................................................................................................14
Returns.............................................................................................................................................14
World Wide Web .............................................................................................................................15
Notes contain information about special circumstances.
Cautions indicate the possibility of equipment damage or the possibility of personal injury.

Revision 01 December 22, 1997 150-318-122-01
iv PairGain Engineering - Plant Series HMS-318 List 2B

150-318-122-01 December 22, 1997 Revision 01
HMS-318 List 2B PairGain Engineering - Plant Series 1
OVERVIEW
This practice provides installation instructions for the PairGain®HMS-318 List 2B HiGain®Management Shelf.
Shelf Descriptions
The HMS-318 List 2B has the following features (Figure 1):
•houses a maximum of 22 HLU-319 line units and one HMU-319 management unit
•is 16.3 cm high x 30.5 cm deep x 44.2 cm wide, exclusive of mounting brackets
•is equipped with:
–brackets for mounting on JIS-style racks (The brackets have adjustable mounts that allow the shelf
penetration to conform to existing equipment.)
–a kit including a set of four M5x0.8 by 10 mm mounting screws
–a kit including BNC T-connector and 50ΩBNC termination
Figure 1. HMS-318 List 2B Front View

Revision 01 December 22, 1997 150-318-122-01
2 PairGain Engineering - Plant Series HMS-318 List 2B
Shelf Connections
Both connectors and wire-wrap pins are provided for connecting to the DSX-1 and HDSL spans (Figure 2 and
Figure 3).
Figure 2. HMS-318 List 2B Connector Locations
Figure 3. HMS-318 List 2B HLU Wire-Wrap Pins
Table 1 lists the connectors and terminal strip identities for the shelf. Signal and pin assignments for these
connections are listed in Tables 2through 5, on pages 7through 10.

150-318-122-01 December 22, 1997 Revision 01
HMS-318 List 2B PairGain Engineering - Plant Series 3
Power and Alarm Connections
Each shelf provides power (TB1) and alarm (TB2) connections.
DSX-1 and HDSL Connections Using Plug-In Connectors
The rear of each shelf includes four male 50-pin (HMS-318) Amphenol-type connectors for DSX-1 Receive and
Transmit (P1 and P2) and HDSL Spans Loop1 and Loop 2 (P3 and P4). These provide Tip and Ring connections
for all cards in the shelf. (Use 50-pin mating female connectors, AMP Kit No. 2-22913-1 for 24 - 26 AWG.)
Table 1. HMS-318 Connectors
Identifier Connector Type Definition
P1 Amphenol 50-pin Male DSX-1 Receive
P2 Amphenol 50-pin Male DSX-1 Transmit
P3 Amphenol 50-pin Male HDSL Span Loop 1
P4 Amphenol 50-pin Male HDSL Span Loop 2
J1-J22 20-pin wire-wrap HLU connectors
J23 DIN 96-pin Female HMU connector
J24 RS-232 DB-25 (Female) OS Craft Port (DTE)
J25 RS-232 DB-25 (Female) AUX Craft Port (DTE)
J26 BNC 10BASE-2 Ethernet LAN connector
J34 RJ-45 10BASE-T Management Network port
TB1 9-pos. Terminal Block Power connector
TB2 22-pin wire-wrap Alarm connector

Revision 01 December 22, 1997 150-318-122-01
4 PairGain Engineering - Plant Series HMS-318 List 2B
DSX-1 and HDSL Wire-Wrap Connections
DSX-1 and HDSL line unit connections can also be made to the individual card connectors by wire-wrap pins
(0.045 inch/1.14 mm). Straps for cable dressings and a protective Lexan rear cover are provided. Figure 4 shows
the line unit slot pinouts on the HMS backplane.
Figure 4. HMS-318 List 2B Line Unit Pinouts
Management Asynchronous Ports
J24 and J25 are two RS-232 communication ports that allow two optional management systems to be connected
to the HiGain system. Consult the HMU-319 List 5B technical practice for use of the two communication parts.
Multishelf Network Connector
One BNC connector on the backplane allows several shelves to be chained together into an integrated network
through a 10BASE-2 (IEEE 802.3) Ethernet LAN. The connector is J26.
Management Network Port
An RJ-45 (J34) is used to connect the management card to a 10BASE-T Ethernet management network.

150-318-122-01 December 22, 1997 Revision 01
HMS-318 List 2B PairGain Engineering - Plant Series 5
INSTALLATION
This section contains site requirements and installation instructions for the HMS-318 List 2B.
Site Requirements
Two busses provide the -48 Vdc shelf battery feed: -48VA and 48VB. Each bus should be fused at 10 Amperes.
Shelf Installation
Use the following procedure to install the HMS-318 shelf:
1Secure the shelf in the bay using the shelf’s mounting brackets.
2Connect frame ground (FG) according to local grounding practices.
3Connect the HDSL and DSX-1 inputs to the shelf using one of the following methods:
•Plug the DSX-1 interface cables into P1 and P2 and the HDSL interface cables into P3 and P4 (Figure 2
on page 2). Span connections are listed in Tables 2through 5on pages 7through 10. Table 6 on page 11
shows the standard PIC cable color codes.
•Wire-wrap the DSX-1 and HDSL inputs to the appropriate individual card slots. Pin assignments are
listed in “Signal and Pin Assignments” on page 6.
4Connect the power and optional fan inputs to TB1 as shown in Figure 5. Slots 1 through 11 are powered by
the -48VA bus, and slots 12 through 22 are powered by the -48VB bus. The two GND terminals are tied
together. The HMU-319 is diode-OR’ed to both power busses, to guard against power failure in the event that
one supply is lost.
Figure 5. Terminal Strip TB1

Revision 01 December 22, 1997 150-318-122-01
6 PairGain Engineering - Plant Series HMS-318 List 2B
5Connect the optional alarm inputs to TB2 as shown in Figure 6.
Figure 6. Terminal Strip TB2
6Install the line units and the HMU-319 management unit in the shelf, as described in the applicable practices.
SIGNAL AND PIN ASSIGNMENTS
This section includes the following tables of signal and pin assignments:
•Table 2, “P1 - DSX-1 Receive (Tip and Ring),” on page 7
•Table 3, “P2 - DSX-1 Transmit (Tip and Ring),” on page 8
•Table 4, “P3 - HDSL Loop 1 (Tip and Ring),” on page 9
•Table 5, “P4 - HDSL Loop 2 (Tip and Ring),” on page 10
•Table 6, “Standard Pic Color Code,” on page 11
•Table 7, “J24 - OS Craft Port (DTE),” on page 12
•Table 8, “J25 - AUX Craft Port (DTE),” on page 12