Samwontech TEMI770 - Communication (RS485;RS232)

I. INSTALLATION
IM TEMI 770E_C 2nd Edition: Sep. 1. 2003. 14/15
4-2-7. Communication(RS485/RS232)
CAUTION
Before starting communication wiring, be sure to turn off the system or
else you will get an electrical shock.
(1) RS485(Optional specification)
■ The slave side(TEMI 770) can accommodate up to 31 units in a MULTIDROP connection.
■ Be sure to connect a terminating resistance(220Ω 1/4W) to the units at the both
(2) RS232C(Standard)
■ CONNECTOR : Wiring with 9 PIN
SG
RTS
CTS
5
SHIELD
8
7
(
D-Sub 9 Pin
)
RD
TD
3
2
TxD
RxD
SG
(D-Sub 9 Pin Female)
3
2
5
SG
SHIELD
RTX+
RTX-
SG
SG
RTX-
RTX+
RTX+
RTX-
Termination
Resistance
Termination
Resistance
Class 3 Ground
Class 3 Ground
Controller Controller
Class 3 Ground
Master Station