E-Mon E-PS-A-RTU-N - Manual (Page 28)

Chapter 2 Installation Communications Connections
28 PowerSmart+ Advanced Power Quality Meter
RS232
POWERSMART+ ADV.
MALE CON.
IBM PC/COMPATIBLE
25-PIN DB25
FEMALE CON.
IBM PC/COMPATIBLE
MALE CON.
RS232
POWERSMART+ ADV.
9-PIN DB9
FEMALE CON.
RS-232 SIMPLE 3-WIRE
CONNECTION 25-PIN CONNECTION 9-PIN
RS-232 SIMPLE 3-WIRE
Figure 2-29 COM1: RS-232 Cable Drawings
COM1 RS COM1 RS COM1 RS COM1 RS----422/485 Connection 422/485 Connection 422/485 Connection 422/485 Connection
0-1mA
0-20mA
V
-+1mA LOW DC N
(24) 18-36VDC
(48) 36-72VDC S
2 (12) 10-16VDC
+ 7
3
9 6
5 1
- 4-20mA 9 8 COM.1 :
ATTENTION
Devices
Static-Sensitive
Static-Safe
Workstations
Handle Only at
POWER SUPPLY
RS-422/RS-485
16
+RX
COM.2 COM.1
11
V
15 13 14 6 9 N
1 5
-TX +TX -RX
V
MODEM
PROFIBUS
ETHERNET
RS-232/422/485 STANDARD
3
17
12 L/+
N/- 10
ANALOG IN/OUT :
Connector 9-pin D-type female:
Pin Signal
6 RS-422/485 +RxD
7 RS-422/485 +TxD
8 RS-422/485 –TxD
9 RS-422/485 –RxD
RS-422
TO SATEC
CONVERTER
PM172
COM1
+ T
+ R
- R
- T
8
1
6
2
7
3
9
4
5
(MALE)
DB9
+ T
+ R
- T
- R
RS-422 CABLE
5
4
3
2
1
Figure 2-30 COM1: Connection to the RS-422/485-RS-232 Converter