Comtech EF Data SMS-458B - Manual (Page 107)

SMS-458B Modem Protection Switch Revision 2
Cable Configuration MN/SMS458B.IOM
A–11
SDM-9000 PR1
TX
TX / IF OUT
RX
FAULT
CP4
CP1
SDM-9000 PR2
TX
TX / IF OUT
RX
FAULT
CP3
CP4
CP1
SDM-9000 PR3
TX
TX / IF OUT
RX
FAULT
CP4
CP1
SDM-9000 PR4
TX
TX / IF OUT
RX
FAULT
CP4
CP1
SDM-9000 BK-UP
TX
TX / IF OUT
RX
FAULT
J1
J2
CP1
A2 / A10
BACKUP MODEM I/O
DATA458 BK-UP
PR1 MODEM DATA I/O
A2 / A1-A2
DATA458 PR1
PR2 MODEM DATA I/O
A2 / A3-A4
DATA458 PR2
PR3 MODEM DATA I/O
A2 / A5-A6
DATA458 PR3
PR4 MODEM DATA I/O
A2 / A7-A8
DATA458 PR4
SMS-458 (A2)
MOD BACKUP
MOD PRIME 1
MOD PRIME 2
MOD PRIME 3
MOD PRIME 4
MODEM CNTL INTF J3
J26
J18
J19
J20
J21
AC1
AC2
CGND
J37
J38
J39
AC IN
J8
J8
J8
J8
REMOTE
J6
REMOTE
REMOTE
REMOTE
REMOTE
J6
J6
J6
J6
J8
J3
CP3
CP4
J3
J4
J6
CP3
J3
J4
J6
J6
J6
J4
J4
J3
J3 CP3
CP3
Figure A-6. SMS-458B Installation Schematic for SDM-9000 Satellite Modem with G.703
Data Interface