131

Appendix C: Board Layout

APPENDIX CBOARD LAYOUT
POWER
PHONE
A B
RS485
RS232 PORT (DCE)
Digital output
terminal block
Power supply
terminal block
Acrylic safety panel
Reset button
RS232 port for local
communication
RJ11C phone jackRS485 port for
networking
Input terminal screws
Input commons
DIP connector for input
module ribbon cable
On-board relay output
terminal block
Optional analog output
terminal block
RECHARGE
NC
P11
OFF
ON
Input configuration pins
Communications speed
configuration pins
Battery recharge pin
ON-OFF switch
P12
TEMP
4-20mA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 1
2
3
P10
ON OFF
P14
DIP connector for output
module ribbon cable
RELAY
NCCOM NO
ANALOG OUTPUTS
C 4 C 3 C 2 C 1
DIGITAL OUTPUTS
8 7 6 5 4 3 2 1 C 12V C 5V
EG 24 24 BAT C 20V C 15V C 12V C 5V C
AC AC
INPUTS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
P13
P9
OFF
ON
Termination pin
header for networking