Comtech EF Data CDM-570A - Manual (Page 135)

CDM-570A/570AL Satellite Modem with Optional Packet Processor MN-CDM570A
Front Panel Operation Revision 2
6–31
6.3.2.6 CONFIG: Frame (Framing Mode)
Appendix J. EDMAC CHANNEL
Framing Mode: Unframed
EDMAC EDMAC-2 (◄ ►,ENT)
Use the ◄ ► arrow keys to select a parameter. Press ENTER.
Parameter Description
Unframed
No framing is selected, no overhead is added, and the modem is with other manufacturers’
equipment when operating in a ‘standard’ configuration.
EDMAC
Comtech EF Data’s proprietary framing is added. The framing permits the bi-directional passing of
M&C and AUPC data between local and distant-end units.
EDMAC-2
6.3.2.6.1 (CONFIG: Framing Mode) EDMAC or EDMAC-2
EDMAC is backward compatible with the CDM-500, CDM-550/T, CDM-570/570L, and
CDM-600/L modems. EDMAC-2 is a reduced overhead version of EDMAC. While it is not
completely backward compatible with the modems mentioned here, it is backward compatible
in some modes (for example, in TPC BPSK modes and at rates above 2.048 Mbps).
When you select EDMAC or EDMAC-2, the modem displays the following submenu:
Framing mix: AUPC-Only
AUPC+EDMAC (◄ ►,ENTER)
When you enable EDMAC or EDMAC-2 framing, the modem automatically enables
AUPC but the specific EDMAC feature (passing M&C data from a local to a distant-
end unit) requires further configuration.
Use the ◄ ► arrow keys to select AUPC-Only or AUPC+EDMAC. Press ENTER.
Parameter Description
AUPC-Only (Default) None of the EDMAC features are available, even though framing is still enabled.
AUPC+EDMAC The system further prompts whether to select the modem as an EDMAC Master or an EDMAC
Slave.
(CONFIG: Framing Mode) EDMAC or EDMAC-2: AUPC+EDMAC
EDMAC Mode:
Master Slave (◄ ►,ENTER)
Use the ◄ ► arrow keys to select Master or Slave. Press ENTER.