Recognition Systems HANDKEY II Manual page 76

Appendix B - Board Configuration Differences
Terminal
Block
Labeling
Page 74
OLD PCB
Number
1 12-24 VDC (+) OR VAC
12-24 VDC (-) OR VAC
2
3* RX-
4* RX+
5* TX-
6* TX+
7 REX SWITCH
8 GROUND
9 DOOR SWITCH
GROUND
10
11 AUX IN 1
12 GROUND
13 AUX IN 2
GROUND
14
15 (+) 5 VDC OUTPUT
16 DATA/D0
CLOCK/D1
17
GROUND
18
19 LOCK OR CLOCK OUTPUT
20 GROUND
21 BELL OR DATA OUTPUT
GROUND
22
23 AUXOUT 1
24 GROUND
25 AUXOUT 2
GROUND
26
Number
1 (+) 5 VDC OUTPUT
DATA/D0
2
3 CLOCK/D1
4 GROUND
5 LOCK OR CLOCK OUTPUT
6 BELL OR DATA OUTPUT
7 AUXOUT 1
8 AUXOUT 2
9 REX SWITCH
GROUND
10
11 DOOR SWITCH
12 AUX IN 1
13 GROUND
AUX IN 2
14
15 RX- *
16 RX+ *
TX- *
17
TX+ *
18
1 12-24 VDC (+) OR VAC
2 12-24 VDC (-) OR VAC
Figure 16-1
NEW PCB