Replacing The Call Charge Module; Changing The Ram Module - Mitel Aastra 470 System Manual

7. Secure the Call Manager card back into its slot with the screw.
8. Restart the call manager by pressing the On/Off button on the call manager
card.
Proceed accordingly to replace one defective IP media module to a PRI trunk card.
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
1. Carry out preparations (see
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.
6. 3. 4. 4

Changing the RAM module

The RAM module is fitted to the call manager card and available as a spare part.
To replace a defective RAM module, proceed as follows:
Warning
Be sure to observe the
1. Carry out preparations (see
Aastra 470 as of R3.2
syd-0337/1.6 – R3.2 – 09.2014
"Safety regulations", page
"Preparations", page
"Safety regulations", page
"Preparations", page
Operation and Maintenance
92.
207).
92.
207).
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