Comtech EF Data SMS-458B - Manual (Page 21)

SMS-458B Modem Protection Switch Revision 2
Introduction MN/SMS458B.IOM
1–5
POWER SUPPLY
SLOT 1
SLOT 2
SLOT 3
SLOT 4
SWITCH DRIVER
SLOT 6
ONLINE TELEMETRY
SLOT 7
SLOT 5
MONITOR AND CONTROL
ADDRESS DEC/DRV NOT USED
POWER SUPPLY 2
Figure 1-3. SMS-458B Upper-Front Section Interior
INPUTS OUTPUTS BU MOD 1
IF 1
IF 2
IF 3
BACKUP DEMOD 1
IF 4
MOD 1
MOD 2
MOD 3
MOD 4
BACK-UP 1 IF OUTPUT
DEMODULATOR SWITCH
DOWNLINK 4
DOWNLINK 3
DOWNLINK 2
DOWNLINK 1
DEMODULATOR SWITCH
Figure 1-4. SMS-458B IF Switching Matrix