CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
EDMAC Channel J–3 MN-CDM570A
J.3 Setup Summary
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.
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