Specifications

Appendix E. 9783 Connectors and Cables

This chapter provides details on 9783 connectors, cable pin-out assignments and

part numbers.

Figure 67. IBM 9783 Port and Connectors

5.5 Analog Voice Ports

Caution! Hazardous voltages can be generated on telephone connections.

Damage can result from connection to telephone circuits that are incompatible

with selected configurations. Only qualified personnel should be permitted to

work on telephone circuits.

The IBM 9783 P1 and P2 voice port connectors consist of two 50-pin RJ2HX

connectors located on the rear panel of the chassis. When AVFAX cards are

installed in an IBM 9783, these connectors provide access to eight analog voice

ports, which provide the following console-configurable telco interfaces:

• FXO Loop Start signaling

• FXS Loop Start signaling

• E&M, 2- or 4-wire, Types 1 through 5, normal or reverse

The voice port P1 connector provides connection to voice ports 1 through 6.

Depending on the console-configured telco interface, either all or a subset of

these signals will be used. The voice port P2 connector provides connection to

voice ports 7 and 8. The signals used are determined by the console-configured

telco interface. Details of the voice port connectors pin signal assignments are

listed in Table 72 on page 200 through Table 74 on page 201.

5.5.1 P1 and P2 Voice Port Connectors

The connectors used with IBM 9783 analog voice port cables and their pin

numbering are shown in Figure 68. Cable lengths should not exceed 2000 feet

and loop resistance should not exceed 100 ohms. An optional RJ11 adapter