AERCO XPC GATEWAY Communications - Manual (Page 63)

GF-122 AERCO XPC GATEWAY
63
NOTE:
PORT 1a CONNECTIONS WILL DEPEND ON THE
AVAILABLE PORTS ON THE BAS BEING USED.
IF THE BAS CONTAINS A 4-WIRE RS485 PORT, SEE
DETAIL “A”.
IF THE BAS CONTAINS ONLY A RS232 PORT, A
RS485-TO-RS232 CONVERTER WILL BE REQUIRED.
RXD
TXD
GND
+(B)
-(A)
SHLD
TO C-MORE
OR MODULEX
BOILERS
CONTROLLED
VIA RS485
NETWORK
BMS II
JP6 JP5
RS232
XPC GATEWAY
PORT
1a
NET +
NET -
SHLD
TX
DTR
DCD
GND
EIA-232
EIA-485
2W
4W
TO BAS
(SEE NOTE)
PORT
2
RX
RS485
T+
R-
R+
T-
SHIELD
4-WIR
E RS
485
POR
T
DETAIL “A”
BMS II CONNECTED TO XPC PORT 2
NOTE:
PORT 2 CONNECTIONS AND JUMPER POSITIONS
WILL DEPEND ON THE AVAILABLE PORTS ON THE
BAS BEING USED. SEE DETAIL “A”.
XPC GATEWAY
PORT
1a
NET +
NET -
SHLD
EIA-232
EIA-485
2W
4W
TO BAS
(SEE NOTE)
PORT
2
SE
E NO
TE
JUMPERS
RS485-TO- RS232
CONVERTER
RS232 RS485
2W 4W 232
Net +
Net -
N/C
N/C
Tx + Tx
Tx - Rx
DTR
Rx - DCD
SIGNAL GROUND
Rx +
Port 2
DETAIL “A”
B+
A-
GND
RXD
TXD
GND
RXD
TXD
GND
+(B)
-(A)
SHLD
TO C-MORE
OR MODULEX
BOILERS
CONTROLLED
VIA RS485
NETWORK
BMS II
JP6 JP5
JP7
+12V
ISO
12V
ISO
GND
BMS II CONNECTED TO XPC PORT 1a
Figure 3-15. BMS II Sample Network Diagrams