Communication Cable Connection; System Configuration Examples - M-system 53U Instruction Manual

COMMUNICATION CABLE CONNECTION

RS-232-C
*1. Internal terminating resistor is used when the device is at the end of a transmission line.
*2. Install shield cables to all sections and ground them at single point.

SYSTEM CONFIGURATION EXAMPLES

■ RS-485 / RS-232-C
Multi Power Monitor
(model: 53U)
■ RS-485 / ETHERNET
ETHER NET
CNFG
R2K-1
T1
T2
*
1
T3
T4
*
2
FG
RS-232-C
RS-232-C/RS-485
Converter
(model: R2K-1 or LK1)
Lightning Surge Protector
for RS-485/422
(model: MD74R or MDP-4R) *
RS-485 (Modbus RTU)
Ethernet
Communication Adaptor
(model: 72EM-M4 or 72EM2-M4)
RS-48 5
RUN
SEND
FIELD
Lightning Surge Protector
for RS-485/422
(model: MD74R or MDP-4R) *
RS-485 (Modbus RTU)
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
RS-485
53U
T1
T2
T3
T4
1
1
RS-485
Lightning Surge Protector
for RS-485/422
(model: MD74R or MDP-4R) *
1
Lightning Surge Protector
for RS-485/422
EM-6485-A Rev.15 P. 7 / 8
(model: MD74R or MDP-4R) * 1
53U
53U
T1
T2
*
1
T3
T4