Specifications

5-8 Reference Guide

Model No.

Running Head

Interface Card Ports and Functionality Interface Card

Figure 5-6. INF E1*2 Interface Card Port

5.3 Interface Card Ports and Functionality

The Interface card controls many critical functions in the system. It provides interfaces to

external control devices, termiantes all T1 and E1 WAN links, and holds the nonvolatile RAM

and the internal modem. Table 5-4 lists the interface ports and functions. Figure 5-7 shows the

component layout and labels the ports.

Table 5-4. Interface Ports and Functions

Interface Ports Function

Modem Connects the internal modem to a phone line.

Node Provides contacts to report ACO alarms

Control Terminal Connects the system to a VT-100 compatible terminal.

Computer Connects a local device for printing alarms; or to NMS.

T1/E1 WAN link Connects the system to T1 and E1 lines.

S232 Control Terminal

1 WAN Connector (WAN 1-2)

Interface Port

1 WAN Connector (WAN 1-1)

S485 Nodal Port

S232 Computer Port