12
7. DB-25 Connections
GROUND
TxD
RxD
GROUND
ALARM IN 1
ALARM IN 2
ALARM IN 3
ALARM IN 4
SWITCHING PULSE IN
SWITCHING PULSE OUT
ALARM OUT
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
TxD
RxD
GROUND
ALARM IN 1
ALARM IN 2
ALARM IN 3
ALARM IN 4
ALARM IN 5
SWITCHING PULSE IN
SWITCHING PULSE OUT
ALARM OUT
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
ALARM IN 6
ALARM IN 7
ALARM IN 8
(a)
(b)
Figure 4: Remote Control Pinout (a) QM4 (b) QM8
The above connections are shown as the solder points to the mating DB-25M connector.