Maintenance

Maintenance Login Procedure

This is not a procedure. Please supply. If you cannot log in, first check terminal power, connections, settings, and modem speed if you are connected via a modem. If the modem appears to be locked up, type * @ ; this may fix the remote access problem. If you still cannot reach the DEFINITY LAN Gateway system, call the switch administrator. Is the switch working? Can the administrator call into the system? A technician may have to be dispatched to the site.

Maintenance Procedures

Replacing the Circuit Packs

Refer to Figure 4-5and follow the steps listed below to replace the MFB or Alarm Board.

Slotted Screw

Retaining

Gang Latches

Pins

Slotted Screws

I2C Bus Cable

 

 

Mounting Bracket Spring Clip

Figure 4-5. Top View of DEFINITY LAN Gateway System

WARNING:

Static electricity can be destructive to system parts. Use an anti-static wrist strap whenever removing or installing a DEFINITY AUDIX system. Also use an anti-static mat when taking the system apart to replace circuit packs or storage devices.

1.Ensure that the customer knows you will be powering down the system and disrupting service.

2.If it is not already shut down, bring the system to the MSHUT state. (From the Main Menu, select Maintenance, Reset System, and then Shutdown.)

Issue 1 January 1996 4-13

Page 128
Image 128
AT&T 555-230-223 manual Maintenance Procedures, Maintenance Login Procedure, Replacing the Circuit Packs