Comtech EF Data SMS-301 - Manual (Page 101)

SMS-301 Redundancy Switch SDM-300/-300A System Installation
Rev. 3 B–7
5. Connect the DEMOD side of the 1:1 switch as follows:
a. Connect the “RX IF” BNC connector (J8) to the down converter “IF OUT”
(J7), using Cable PL/0813-X.
b. Connect the “A” BNC connector (J9) to the prime modem “RX IF IN” ,
using Cable PL/0813-X.
c. Connect the “B” BNC (J7) to the backup modem “RX IF IN”, using Cable
PL/ 0813-X.
6. Connect the customer-equipment (as required) to the remote switch
“TRIBUTARY’ cuonnectors, using Cable PL/6239.
7. Connect AC power to AC1 (J11) and AC2 (J12) with power cable assemblies
PL/6051-1.
a. If two AC power sources are availble, connect AC1 and the prime modem to
one AC source, and AC2 and the backup modem to the other AC source.
b. If the DC power option is used, connect the DC voltage to the terminal
blocks in a similar manner.
8. Connect the remote terminal to the “REMOTE CONTROL” (J10) connector,
REMOTE (J6) on the priome modulator and REMOTE (J6) on the backup
modulator using Cable PL/6239.