Comtech EF Data CDM-625 - Manual (Page 366)

CDM-625 Advanced Satellite Modem Revision 15
EDMAC Channel MN-CDM625
11–4
11.3 EDMAC Channel Setup
To access a distant-end unit:
• Designate a Master/Slave pair: Master at the local-end, Slave at the distant-end.
• On the local-end unit, enable framing and EDMAC, define the unit as MASTER, then enter
the bus address. This is constrained to be ‘base 10' meaning that only addresses such as 10,
20, 30, 40 etc, are allowed.
• Choose a unique bus address for the distant-end. This should normally be set to the ‘base
10' address + 1. For example, if the MASTER unit is set to 30, choose 31 for the distant-end
unit.
• On the distant-end unit, enable framing and EDMAC, define the unit as SLAVE, then enter
the bus address. The orange EDMAC Mode LED on the modem front panel should be
illuminated.
• Set the local-end unit to RS485 remote control, and set the bus address of this local unit.
The orange Remote Mode LED on the modem front panel should be illuminated.
• Once the satellite link has been established, connect the M&C Computer, and begin
communications with both the local and distant end units.
EDMAC modes are fully compatible with AUPC modes.