GE MDS SD Series Technical Manual page 23

MDS 05-4846A01, Rev. D
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Packet With MAC is the recommended method of operation when both
serial ports are used to pass payload data if there are two hosts (e.g., Post
Sharing with multiple host case). If there is a single host polling all units,
packet or transparent mode is the better option (depending on whether
encryption is required or not) even if there are two RTUs connected to a
remote radio.
Device Settings Screen
Radio Mode: Packet w/MAC
HOST COMPUTER
(Host A)
REMOTE RADIO
(One of several possible sites)
SERIAL RTU
SERIAL RTU
Figure 10. Serial Remotes with Two Serial Ports
SD Series Technical Manual
MASTER RADIO
To Ethernet Port
TCP Ethernet
(One of several possible sites)
SERIAL RTU
REMOTE RADIO
SERIAL RTU
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