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Wide Bank 28 DS3 - Release 2.4 July 2004 5-7

Electrical Installation and Cabling

Low-Speed DS1/E1 Cables

The Wide Bank 28 DS3 uses DSX-1 cables for crossconnecting DS1 or E1 signals to other equipment.

If the DSX-1 cables will interface with wire-wrap connections, see Low-Speed DS1/E1 (DSX-1)

Connector Pinouts on page A-4 for circuit, pin, and wire group information.

Two DSX-1 cables are required, one for transmit and one for receive. See table for cable part numbers

and specifications.

Table 5-1 Wide Bank 28 DS3 Low-Speed Cables

CAUTION! CABLE CONNECTORS MUST BE SECURELY LATCHED IN PLACE TO

PREVENT SERVICE INTERRUPTIONS. IF THE CABLE CONNECTOR INTERFERES WITH THE

LATCH SPRING OR CAN NOT BE SECURELY LATCHED, A DIFFERENT CABLE SHOULD BE

USED.

1. Carefully connect the 64-pin connectors of DSX-1 cables to LOW SPEED IN and LOW SPEED

DS1 OUT

on the Wide Bank connector panel (see Figure 5-4). Ensure that the spring-loaded

connector latches snap over the connectors (see Figure 5-5).

2. Insert and tighten the connector screws on the ends of both connectors (see Figure 5-5).

3. Secure both low-speed cables with cable ties as shown in Figure 5-5.

4. Connect both grounding wires from the low-speed cables to the

Low Speed Drain Wires

connection, as shown in Figure 5-3 and in Figure 5-4.

5. If there are grounding leads on the far end of the low-speed cables, cut them off to prevent them

from being connected to other equipment, which may cause an unwanted ground loop.

6. Attach ferrite RF Suppressors on the low-speed cables (two per cable for DS1, three per cable

for E1) as shown in Figure 5-2.

Part

No.

Cable

Length

Application Connectors

005-0025 10 ft.

(3.048 m)

Low-Speed cable for connecting the Wide

Bank 28 DS3 to a DS1 or E1 patch panel for

standard low-speed applications

Two 64-pin male

Amphenol

“CHAMP”

connectors

005-0030 25 ft.

(7.7 m)