Cisco 7304 Installation Guide download pdf (Page 42)

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Cisco 7304 Router Modular Services Card and Shared Port Adapter Hardware Installation Guide

OL-4681-01

Chapter 3 Overview: Cisco 7304 Router Shared Port Adapters

T3/E3 Serial SPA Overview

Note The Cisco cable part numbers are 72-4124-01 ( with male BNC end) and 72-4131-01 (with female BNC

end).

Figure 3-14 shows the connectors on the 4-Port T3/E3 Serial SPA, and Table 3-14 describes the signal

descriptions for these connectors.

Table 3-14 2-Port and 4-Port T3/E3 Serial SPA Connectors

Connector Label Meaning

TX Transmitted signals appear on the center contact, and the outer shield is ground

for the 75-ohm RG-59 coaxial cable you attach to the TX BNC connector.

RX Received signals appear on the center contact, and the outer shield is ground for

the 75-ohm RG-59 coaxial cable you attach to the RX BNC connector.

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Cisco 7304 Installation Guide Page 42