H3C Technologies H3C MSR 20-2X[40] - Manual (Page 30)

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Figure 16 AUX cable
Connecting the AUX cable
Follow these steps to connect the AUX cable.
Step1 Plug the RJ-45 connector of the cable into the AUX port on the main board.
Step2 Plug the DB-25 or DB-9 connector into the serial port on the analog modem.
When using the AUX interface for remote configuration or dial backup, you need to connect the local
modem to the remote modem through PSTN and then to the remote device. For the configuration
procedures, refer to MSR Series Routers Configuration Guide.
Interface Modules
The MSR 20 Routers are available with various types of interface modules. For detailed information refer
to MSR Series Routers Interface Module Manual.
Installing and Removing Interface Modules
With support for removable slide rails, the MSR 20 routers deliver great flexibility and expandability by
applying DSIC interface cards. Slide rails are installed in slots and can be removed for the installation of
DSIC interface cards.
CAUTION:
•
Keep the removed slide rails for future use.
• Make sure the device is disconnected from the power supply before installing or removing an interface
card.