Specifications

Section 4, Installation - Installing the MX3 Chassis

61189008L1-1B 4-7

Rear Chassis Connections

Figure 4-6 illustrates the rear panel and identifies the following equipment:

1. Four sets of BNC connectors

2. Ethernet port

3. Wire-wrap pins for alarms (critical, major, and minor)

4. Wire-wrap pins for external auxiliary inputs

5. Two 64-pin female amphenol connectors

6. Ground lug for earth ground connection

7. Terminal strip for DC power feed (A and B)

Figure 4-6. MX3 Chassis Rear View

WARNING

Do not metallically connect the DS3 (A-D), T/R (DSX-1), Alarm,

AUX, and Ethernet interfaces to interfaces which connect to the

Outside Plant (OSP) or its wiring. These interfaces are designed for

use as intra-building interfaces only. The addition of Primary

Protectors is not sufficient protection in order to connect these

interfaces metallically to OSP wiring.

1. The ETHERNET port is an 8-pin modular connector that provides a 10/100Base-T Ethernet

interface. For system management, use CAT 5 cable to connect from the Ethernet network

into the female RJ-45 port labeled

ETHERNET on the MX3 chassis rear panel.

2. The DSX-3 network interfaces are full-duplex circuits provided by eight BNC coaxial cable

connections. Connect the DS3 interfaces to the BNC connector labeled

A as needed for the

MX3216 system. Connect the receive data from the network to the

IN connectors. Connect

the transmit data from the MX3 chassis to the

OUT connectors.

NOTE

DS3 interfaces must be connected using coaxial cables that have

shields grounded at both ends.

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