Aastra 470 System Manual

Operation and Maintenance
228
Aastra 470 ab R3.0
syd-0337/1.5 – R3.0 – 05.2013
6. 3. 4. 3 Replacing the call charge module
Call charge modules are fitted to FXO trunk cards.
To replace a defective call charge module on an FXO trunk card, proceed as follows:
Warning
Be sure to observe the "Safety regulations", page 95.
1. Carry out preparations (see "Preparations", page 221).
2. Unscrew the screw on the FXO card and remove the card by pulling the fasten-
ing screw.
3. Remove the defective module by loosening the fastening screw and carefully
pulling the module out vertically of the module slot.
4. Place the new module in the slot and press it down evenly into the slot as far as
the stop.
5. Secure the module with the fastening screw on the spacer sleeve.
6. Carefully slide the FXO card into the slot shaft and gently press the card as far as
it goes into the connection on the backplane.
7. Use the screw to secure the FXO card back into its slot.
8. Restart the call manager by pressing the On/Off button on the call manager
card.

Aastra 470 Specifications

General

Brand	Aastra
Model	470
Category	Telephone
Language	English