Specifications

Rev. 5 F–1
Appendix F.
ASYNCHRONOUS OVERHEAD
CHANNEL UNIT
This appendix provides information on operating the modem from the front panel with
the asynchronous overhead channel unit option installed. The following version is
described:
• Firmware number: FW/0713-34L
• Software version: 4.12A
Notes:
1. The same version of firmware (listed above) is used for the asynchronous
overhead channel unit, whether or not the AUPC option is installed. However, if
the modem hardware does not support AUPC, the AUPC-related menus and
options (e.g., SELECT REMOTE; SELECT CONFIG, AUPC) will not be
displayed in the front panel menus.
2. The ASYNC breakout panel is required with the asynchronous overhead channel
unit. For information on the ASYNC breakout panel, refer to the ASYNC
Breakout Panel Installation and Operation Manual.
3. For remote control operation information on the modem with the asynchronous
overhead channel unit installed, refer to Appendix B.
This appendix includes:
• Functional description of ASYNC overhead channel unit
• ASYNC interface connector pinouts
• ASYNC interface specifications
• Functional description of ASYNC overhead channel unit with AUPC
• Front panel operation information