Wiring - PCE Health and Fitness LD120 User Manual

2.2 WIRING

5
10
6
LOOP
LD120 220VAC / LD121 110VAC
LD122 12-24VAC/DC
Comms (RJ45) – RS485 (LD120)
Pin Name
1 N/C
2 485
3 485
4 N/C
1 2 3 4
Comms (RJ45) – RS232 (LD120R)
Pin Name
1 N/C
2 TXD
3 RXD
4 GND
1 2 3 4
PRESENCE RELAY
OUTPUT
TWISTED
CABLE
EARTH
Function
Not used (no connect)
+ Line of 485 Comms
- Line of 485 Comms
Not used (no connect)
View From Cable side of connector (Looking 'into' hole)
Function
Not used (no connect)
RS232 Transmit
RS232 Receive
RS232 Common
View From Cable side of connector (Looking 'into' hole)
3
11 PULSE RELAY
4
7
LOOP INPUT
8
1
2 POWER INPUT
9
6
OUTPUT