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6
RX
7
TX
8
TX
RS-232 port
This port is for uploading firmware and configuring the control
card. Use a RS-232 serial cable to connect to a PC.
Power Switch
The power switch turns the rack and all of its modems on or off.
DC Power Terminals
The DC power terminals connect a DC-48V power source to the
rack.
AC-DC switch
The AC-DC switch selects which power supply the rack uses.
Fuse
The 4 A, 250 V AC fuse provides over current protection to the
rack, power supply, and all of its modems.
Power Socket
The power socket connects the power cord to the power supply.
For use on four-wire leased line
systems receiving line (R model only).
Transmits for four-wire leased lines,
transmits and receives for two-wire
leased lines (R model only).
Transmits for four-wire leased lines,
transmits and receives for two-wire
leased lines (R model only).
9
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