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System 9000TS
51
Alarm Status LED’s
Each card is equipped with sixteen yellow LED’s, which indicates if any of the
associated signal inputs are in the normal or abnormal alarm state as a diagnostic aid
and would operate as follows
:-
INPUT SET FOR
SIGNAL CONTACT
LED
Normally Open
Open OFF
Closed ON
Normally Closed
Closed OFF
Open ON
16
STATUS
9
16
15
14
11
12
13
10
7
8
6
5
2
3
4
1
INPU
TS
INPUT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CONTACT
STATUS
YELLOW
LED'S
POWER ON
GREEN LED
+ VC SIGNAL SUPPLY
TYPICAL SIGNAL
INPUT CONTACTS
CH
AN
NEL
NUMBERS
P925TS-I
Input Card Face Plate & Wiring