Comtech EF Data SDM-300A - Manual (Page 394)

SDM-300A Satellite Modem Revision 6
Remote Control Operation MN/SLM3650.IOM
A–2
A.2.1 Start Character
A single character precedes all messages transmit on the remote link.
This character flags the start of a message. This character is:
'<' for commands
'>' for responses
A.2.2 Device Address
The device address is the address of the one satellite modem which is designated to receive a
transmitted command, or which is responding to a command. Valid device addresses are 1 to 3
characters long and in the range of 0 to 255. Address 0 is reserved as a global address which
simultaneously addresses all devices on a given communications link. Devices do not
acknowledge global commands.
Each satellite modem connected to a common remote communications link must be assigned its
own unique address. Addresses are software-selectable at the modem and must be in the range
of 1 to 255.
Note: 'add' is used to indicate a valid 1 to 3 character device address in the range between 0 and
255.