11
2.2.2 B
ACK
P
ANEL
Figure 2-2. Back panel (DC version shown).
1. Power input: (DC unit shown) The DC version includes a dual-bus terminal
block for -48-VDC operation and a ground screw. The AC version includes an
IEC-32 inlet for connection to a three-wire (grounded) power cord (supplied
with the modem).
2. Power switch.
3. Voltage selector switch: (AC units only) For selecting 115-VAC or 230-VAC
operation.
4. Default button: Resets unit to default parameters and erases the password
directory. To reset to defaults, power off the unit, then press and hold the
Default button while pressing the Power switch to ON. Wait several seconds,
then release the Default button.
NOTE
The default procedure will clear all menu-selected parameters and erase
the Password directory.
5. Setup switches: These eight DIP switches select the default modem baud rate,
flow control, parity, rings to answer, compression, speaker (on/off), and
security mode. For more information on the setup switches, refer to
Section 4.2
.
6. Console port: For connection to your PC, terminal, or other device. Allows
access to command mode. DB9, RS-232, DTE configuration.
NOTE
You can also access command mode via modem as explained in
Section 5.1.2.
Appendix A.1
describes the console port interface.
CHAPTER 2: Introduction
