AT&T 3.0 manual Installing the Processor

Installing the Processor

Installing the Processor

Installing the processor includes the following procedures:

■If both of the following conditions are true, follow the procedures in Chapter 9, “Modifying the Processor for Key Mode.”

—Form 1, System Planning, indicates Permanent Key mode.

—Form 2c, System Numbering: Line/Trunk Jacks, indicates no GS (ground-start) trunks in the Incoming Trunk Type column.

■Insert the processor into the carrier as indicated in "Installing the Processor in the Carrier,” later in this chapter.

NOTES:

1.If the system is programmed for Permanent Key mode, check the switch setting. Refer to Chapter 9, “Modifying the Processor for Key Mode” for detailed procedures. If the switch is set to Permanent Key-only operation, all trunks revert to loop-start. If the switch is not set, any programmed designation for ground-start trunks is retained.

The ground-start pool never has trunks assigned to it automatically, but must be programmed after the ground-start ports are designated. Ground- start trunks are assigned to the ground-start pool on initialization, except in a system switched for Permanent Key mode operation. (In Release 1.0, ground-start and loop-start trunks automatically defaulted to loop-start.)

2.Beginning with Release 3.0, the feature module required for Release 2.1 and earlier is no longer needed. The Release 3.0 processor module contains a PCMCIA memory card interface capable of accommodating a 4-MB memory card. This card is used to install or upgrade system software and perform firmware upgrades on circuit modules. It can be used to backup and restore system programming.

Installing the Control Unit 2-29