Hardware
6
Doc No: UMAN\GWY-800-B\0706
REVISION 0
2.2
Communication Port Details
GWY-800-B has three communication ports COM1, HART OUT and Pass Through Port. COM1 port is compactible
to RS232/ RS422/ RS485; HART OUT is a HART Port and Pass Through Port is a serial RS232 Port. Pinout of
these ports are as shown below:
TX- (RS422/RS485)
DB9 Female
1
5
9
6
+5VDC*
(DO NOT USE)
Signal Ground
RX+ (RS422/RS485)
RXD (RS232C/CMOS)
TXD (RS232C)
TX+ (RS422/RS485)
TXD (CMOS)
RX- (RS422/RS485)
6
8
9
7
2
4
5
3
1
PLC1 / COM1
*Do not use pin no. 6 of PLC1 / COM1.
HART PASS THROUGH
CTS
DB9 Female
1
5
9
6
DTS
Signal Ground
DSR
RXD
TXD
RTS
6
8
7
2
4
5
3
2 Pin PBT
HART OUT
HART Terminal B
HART Terminal A