User manual

page | 39
Using RS-232
RS-232 under Unicast Mode
In unicast mode, a Sender unit will be able to communicate with only one Receiver unit
at a time.
Figure 2.10 - In unicast mode, the host can talk to only one RS-232 device at a time.
RS-232 under Multicast Mode
In multicast mode, a Sender unit can communicate with multiple Receiver units
simultaneously.
Figure 2.11 - In multicast mode, the host can talk to multiple RS-232 devices.
LAN
Receiver unit
Receiver unit
Sender unit
Sender unit
Sender unit
Automation Device
Display
(or other RS-232 device)
R
1
S
1
S
2
S
3
R
2
12
12
02
05
09
LAN
Receiver unit
Receiver unit
Sender unit
Sender unit
Sender unit
Automation Device
Display
(or other RS-232 device)
Display
(or other RS-232 device)
R
1
S
1
S
2
S
3
R
2
12
12
12
05
09
Basic Operation