Emerson Process Management 3420 Carbon Monoxide Alarm User Manual


 
64 Wiring and Connections
Section 3: Installation Reference, Installation, and Operations Manual
June 2013 3-9000-743 Rev S
1AIn1 + (Temperature)
2
AIn1
- (Temperature)
Table 3-17 J12 Analog Input Series 100 Plus Option Board (AI2)
Power and Communications Series 100 Plus Option Board Wiring
Field Connection Board Jumpers Series 100 Plus Option Board Switches
J12 S13
Pin 4-20 mA Current
3AIn2 + (Pressure)
4
AIn2 - (Pressure)
Table 3-18 J6 Port A
Power and Communications Field Connection Board Wiring
J6 Port A RS-232 RS-422/485
Pin
Full Duplex Half Duplex
1RXRX +RX/TX+
2TX
RX
- RX/TX-
3 COMM_GND COMM_GND COMM_GND
4 RTS TX + RX/TX+
5CTS
TX
- RX/TX-
Table 3-19 J7 Port B
Power and Communications Field Connection Board Wiring
J7 Port B RS-232 RS-485
Pin
Full Duplex Half Duplex
1RXRX +RX/TX+
2TX
RX
- RX/TX-
3 COMM_GND COMM_GND COMM_GND
4NCTX +RX/TX+
Table 3-16 J12 Analog Input Series 100 Plus Option Board (AI1)
Power and Communications Series 100 Plus Option Board Wiring