ADC HMS-318 Manuel D’Utilisation

1-3

The HMS-318 List 3 shelf input power, 5-position terminal block (labeled TB1) and the alarms (labeled Alarms) wire-
wrap connections are located on the rear panel (see 

). The Bonding (Safety ground) is located on the 

upper right corner extension of the right panel. The label (BONDING WIRE MIN #10 AWG) is located on the right 
corner of the rear panel (see Grounding Lug and Hexhead Screw, 

).

Managed HDSLx configuration

Also located on the rear panel, connectors P1 and P2 (labeled CO PAIR 1 and 2) are DSX-1 receive and transmit 
connections. Connectors P3 and P4 (labeled SPAN PAIR 1 and 2) are HDSL Spans (Loops 1 and 2) receive and 
transmit connections (see 

). All of these plug-in connectors (P1, P2, P3, and P4) are 50-pin Amphenol-

type male connectors and provide Tip and Ring for all the cards in the shelf. For information on the signal and pin 
assignments, see 

LoopStar™ (LPS-300C) Power Module configuration (for Wi-Fi)

Also located on the rear panel (for Visual & Audible Alarm Contact operation, install an HMU-319), connectors P1 
and P2 (labeled CO PAIR 1 and 2) are xDSL B and A IN transmit and receive connections, respectively. Connectors 
P3 and P4 (labeled SPAN PAIR 1 and 2) are xDSL A and B OUT transmit and receive connections, respectively 
(see 

). All of these plug-in connectors (P1, P2, P3, and P4) are 50-pin Amphenol-type male connectors 

and provide Tip and Ring for all the cards in the shelf. For information on the signal and pin assignments, see 

 provides a description of each rear-panel component.

J24

J25

J27

Connector (P2)

Grounding Lug 
and Hexhead Screw

Connector (P1)

Connector (P4)

Connector (P3)

   Input Power
Terminal Block
       (T 1)

B

J26

J23

OS RS232 PORT

CO PAIR 2

AUX RS232 DTE PORT

CO PAIR 1

SPAN PAIR 1

SPAN PAIR 2

02A-1261R

1

10 BASE-T

10 BASE-2

-48VA-48VBBATRTNFGND

1

2

3

4

5

Alarms wire-wrap
   field (TB2)

J22

J1