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Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
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Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers SPAs
24-Port Channelized T1/E1/J1 ATM CEoP SPA Overview
Cable Installation
One end of the cable has a 100-pin connector that plugs into the front of the 24-Port Channelized
T1/E1/J1 CEoP SPA. Use the thumbscrews on either side of the connector to secure the cable to the SPA.
The other end of the cable has two 50-pin Telco connectors that can be attached to the rear of a
24-port RJ-45 patch panel. Both connectors are identical: one is for Transmit (TX) and the other is for
Receive (RX). Figure 3-55 shows how the cable is connected between the 24-Port Channelized T1/E1/J1
CEoP SPA and the patch panel.
Figure 3-55 Cable Installation Between the SPA and the Patch Panel
SPA Cable Pinouts
Table 3-53 shows the cable pinouts for the cable (part number CABLE-24T1E1J1) that is installed
between the 24-Port Channelized T1/E1/J1 CEoP SPA and the rear of the patch panel.
SPA-24CHT1-CE-ATM
250107
TRANSMIT
RECEIVE
24-Port Patch Panel
(rear view, rotated
180
o
for clarity)
Table 3-53 24-Port Channelized T1/E1/J1 CEoP SPA Cable Connector Pinouts
Subscriber Connector Pins
Line Signal SPA TX Cable Lead RX Cable Lead
Line 1 TX Tip
TX Ring
2
52
1
26
Not connected
RX Tip
RX Ring
26
76
Not connected 1
26
Line 2 TX Tip
TX Ring
3
53
2
27
Not connected
RX Tip
RX Ring
27
77
Not connected 2
27
Line 3 TX Tip
TX Ring
4
54
3
28
Not connected
RX Tip
RX Ring
28
78
Not connected 3
28