Aastra 470, System Manual, Page: 92 / 250

Installation
92
Aastra 470 as of R1.2
syd-0337/1.2 – R1.2 – 11.2011
4. 5. 7 Fitting call charge modules
Call charge modules are fitted to FXO trunk cards. Only 1 call charge module can be
fitted to each FXO card.
Fig. 28 Call charge module on 8FXO trunk card
To fit a call charge module, proceed as follows:
Warning
Be sure to observe the "Safety regulations", page 77 .
1. Shut down the call manager via the control panel (see "On/Off key", page 194 ).
2. Unscrew the screw on the FXO card and remove the card by pulling the fasten-
ing screw.
3. Remove the fastening screw for the call charge module on the FXO card and in
its place screw the spacer sleeve into position (see Fig. 28, page 92 ).
4. Place the 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.
Module connector
Trunk card 8FXO
Spacer sleeve
Call charge module
Fastening screw