Optional Message Arguments; End Of Packet - Comtech EF Data CDM-710 Installation And Operation Manual

CDM-710/L Broadcast Satellite Modem
Serial Interface Operation
∼ (ASCII code 126)
"~" is used when the local Controller sends a message to a distant-end device or ODU. If the distant-end device does
not respond, the local Controller generates a response. For example, RET~ (indicates that the local Controller has
finished waiting for a response and is now ready for further communications.

9.3.6 Optional Message Arguments

Arguments are not required for all messages. Arguments include these ASCII codes:
• Characters 0 through 9 (ASCII codes 48 through 57)
• Period ". " (ASCII code 46)
• Comma "," (ASCII code 44)

9.3.7 End of Packet

• Controller-to-Target: This is the Carriage Return character {CR} (ASCII code 13).
• Target-to-Controller: This is the two-character sequence of Carriage Return and Line Feed {CR}{LF} (ASCII codes
13 and 10). This pairing shows the valid end of a packet.
9–8
MN/CDM710.IOM
Revision 12