E F Johnson Company 2422001-1 User Manual
CIRCUIT DESCRIPTION
6-27
August 2000
Part No. 001-2001-200
6.8 EXTERNAL CONNECTOR BOARD
The external connector board (A10) is the
interface for the alarm outputs, connecting
repeaters through the high speed data bus.
repeaters through the high speed data bus.
Figure 6-11 EXTERNAL CONNECTOR BOARD
DA
TA
1 D
ATA
2
J1
25
26
AL
AR
M
IN
AL
AR
M
O
UT
33
34
AL
AR
MS
I/0
13
1
2
J2
1
2
J3
P1
TL
A
-
TL
A
+
HS
DB
+
HS
DB
-
IR
DB
+
IR
DB
-
6
5
4 3
2 1
DATA BUS
HIGH SPEED
A5
J2
BOARD
CONNECTOR
EXTERNAL
A10
TO CARD RACK
P10
ALARMS
A7
TO CARD RACK
J1
A6
REPEATER I/O
J1
TO CARD RACK
P11
R
X
A-
R
IN
G
T
X
A-
R
X
A
+
T
X
A
+
T
IP
T
IP
1
R
IN
G
1
E
B
E
A
M
A
M
B
R
XS
-
R
X
S
+
T
X
S
-
T
X
S
+
E
X
T
M
O
D
V
O
T
A
U
D
V
D
A
T
I
N
2
IN
-
1
IN
-
A
FA
IL
G
R
O
U
N
D
G
R
O
U
N
D
+1
5V
A
+1
5V
A
R
S
S
I
1
O
U
T
-
2
O
U
T
-
2
O
U
T
+
1
O
U
T
+
2
IN
+
1
IN
+
4-
3-
3+
4+
3+
4-
3-
4+
E
X
T
R
E
Q
1
IA
C
41
EX
TO
UT
1
M
49
M
5
0
TX
D
IN
RX
V
OI
CE
TX
V
OI
CE
RX
W
BA
ND
M
M
6
SQ
E
N
EX
TR
EQ
2
M
17
SY
NC
IN
TX
D
OU
T
M
53
M
54
M
55