Comtech EF Data SMS-458B - Manual (Page 31)

SMS-458B Modem Protection Switch Revision 2
Installation MN/SMS458B.IOM
2–5
J25
1
8
J24 J23
7 6
N/C N/C N/C
J22 J21
5 4
N/C
J20 J19 J18
3 2 1
1
1 1 N/C
EXTERNAL
J1
J2
RS485
RS232
J7
J8
DOWN
LINK
INPUTS
J12
J13
2 2
3 3
N/C
N/C
OFF-LINE
IF OUTPUTS
J17
N/C
PRIME MOD INPUTS
IF OUTPUTS
MOD INPUTS
J26
N/C
BACK-UP
J36
2
8
J35
90-264 VAC
6 7
J33 J34
N/C N/C N/C
4 5
J31 J32
ON-LINE STATUS REMOTE/FAULT
DEMOD
N/C
1 2 3
J28 J29 J30
ON-LINE STATUS
MOD
2
J27
J14
J15
4 4 N/C
J9
J10
J3
90-264 VAC
RS485
MODEM
CONTROL
A1
J37
A2 A3
J11
A4
J16
BACK-UP
DEMODS
1 2 N/C
A5
J4
A6
J5
A7 A8
J6 J38
A9 A10
TX
DATA
J1
TERR
DATA
J5 TERR
DATA
J5
TX
J1
DATA
TX
J1
DATA TERR
DATA
J5
TX
J1
DATA
TX
TERR
DATA
J1
DATA
J5
RX
TX
J2
DATA
DATA
RX
TX
J2
DATA
DATA
RX
TX
J2
DATA
DATA
RX
TX
J2
DATA
DATA
RX
DATA
J2
MODEM
J3
BACK-UP
AS/2069
PRIME
MODEM
J6
AS/2068
PRIME
MODEM
J6
RX
J3
J4
DATA
RX
J3
J4
DATA
AS/2068
PRIME
MODEM
J6
AS/2068
RX
J3
J4
DATA
RX
PRIME
MODEM J3
J4
DATA
J6
AS/2068
PRIME INTERFACE
SWITCH MODULES BACKUP INTERFACE
SWITCH MODULE
Figure 2-2. SMS-458B Rear Panel View