Cardinal 225 - Page 26

8200-M698-O1 Rev B  225 Installation and Technical
18
Rx RETURN
Rx ACTIVE
Tx RETURN
Tx ACTIVE
INSTALLATION, CONT.
Interconnect Wiring for COM2/COM3 20mA Current Loop Operation
Peripheral Device has ACTIVE END of Current Loop.
SERIAL I/O TxD2 (COM2/COM3)
P16
Interconnect Wiring for COM2/COM3 20mA Current Loop Operation
Peripheral Device has PASSIVE END of Current Loop.
SERIAL I/O TxD2 (COM2/COM3)
P16
1
2
3
4
5
6
7
8
9
10
11
12
13
TxD2-SRC
TxD2-20mA +
TxD2-20mA –
RxD2-SRC
RxD2-20mA +
RxD2-20mA –
RxD2-RS232
TxD2-RS232
GND2
RxD3-RS232
TxD3-RS232
GND
CTS
+V +V
225
Internal
Circuitry
Tx SOURCE
Tx RETURN
Rx SOURCE
Rx RETURN
1
2
3
4
5
6
7
8
9
10
11
12
13
TxD2-SRC
TxD2-20mA +
TxD2-20mA –
RxD2-SRC
RxD2-20mA +
RxD2-20mA –
RxD2-RS232
TxD2-RS232
GND2
RxD3-RS232
TxD3-RS232
GND
CTS
225
Internal
Circuitry
Peripheral
Device
Peripheral
Device
+5
+5
+5
IMPORTANT!
A jumper MUST be installed
between P16 terminals 4 and
7 to enable 20mA Current
Loop Operation!