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CIRCUIT DESCRIPTION
6-33
March 1999
Part No. 001-2009-600
6.10 ALARM EXTERNAL CONNECTOR BOARD
The alarm external connector board (A10) is the
interface for the alarm outputs and connecting repeat-
ers through the high speed data bus.
Figure 6-14 ALARM EXTERNAL CONNECTOR BOARD
D
A
T
A
1
D
A
T
A2
J1
25
26
A
L
A
R
M
I
N
AL
A
R
M
O
U
T
33
34
A
L
AR
M
S
I
/0
1
3
1
2
J2
1
2
J3
P1
TLA
-
TLA +
H
S
DB
+
HSDB
-
I
R
DB
+
IRDB
-
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
RXA-
RING
TXA
-
R
XA+
TX
A+
TIP
TIP 1
RI
NG
1
E
B
EA
M
A
MB
R
XS-
RX
S+
T
XS-
TX
S
+
EX
T MO
D
VO
T
A
U
D
V
D
AT IN
2
IN
-
1 IN -
AC FA
I
L
GR
OU
ND
G
R
OUND
+15
V
ACC
+15V A
C
C
RS
SI
1
OUT
-
2 OU
T
-
2
O
UT
+
1
O
U
T
+
2 IN +
1
IN
+
4-
3
-
3+
4+
3+
4-
3
-
4+
EXTREQ1
I
A
C 41
E
X
TOUT1
COM 49
COM 50
T
X
D
I
N
R
X VOI
CE
TX VOICE
BRX WBAND
C
OM
M 6
SQ EN
E
X
TRE
Q
2
C
OM
1
7
SYNC IN
TXD OUT
CO
M
5
3
COM 54
COM
55