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
