Operation and Maintenance
196
Aastra 415/430 as of R3.2
syd-0344/1.6 – R3.2 – 09.2014
6. 3. 4 System modules
The category system modules comprises the DSP modules stacked in slot SM1. DSP
modules are available in various versions (SM-DSPX1, SM-DSPX2, SM-DSP1, SM-
DSP2). Compared with DSP modules, modules with the designation DSPX are fitted
with more powerful DSP chips.
6. 3. 4. 1 Changing the DSP module
The following describes how to replace a DSP module if it is defective or how to re-
place it for a more powerful module.
To change a DSP module, proceed as follows:
Warning
Be sure to observe the "Safety regulations", page 82.
1. Carry out preparations (see "Preparations", page 191).
2. Remove the housing cover.
3. Remove the old or defective module by loosening the fastening screw and care-
fully pulling the module out vertically of the module slot.
Note:
If there are several modules fitted and the card to be replaced is not
topmost, the spacing sleeves have to be loosened and the modules
pulled. The order of the modules on the slot is relevant only if different
types of modules are equipped.
4. Press the new module downward evenly on both connectors to the stop.
5. Secure the module with the fastening screw.
6. Fit the housing cover.
7. Reconnect the system to the power supply.
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