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3.3 CONNECTING POWER
The Model 2112 is available with a Universal AC power supply
that is operable in power environments from 100 to 253VAC. No con-
figuration is necessary for the power supply (See Appendix B for
domestic and international power plug options).
3.3.1 Connecting to an AC Power Power Source
The Universal Interface AC Supply is equipped with a male IEC-
320 power connection. A domestic (US) power supply cord is supplied
with the unit at no extra charge. To connect the standard or universwal
power supply, follow these steps:
1. Attach the power cord (supplied) to the shrouded male IEC-
320 connector on the rear of the Model 2112.
2. Plug the power cord into a nearby AC power outlet
3. Turn the rear power switch ON.
4.0 OPERATION
Once the Model 2112 is properly installed, it should operate trans-
parently. This sections describes power-up, reading the LED status
monitors, and using the built-in loopback test modes.
4.1 POWER-UP
To apply power to the Model 2112, first be sure that you have read
Section 3.3, and that the unit is connected to the appropriate power
source. Then power-up the unit using the rear power switch.
4.2 FRONT PANEL LED STATUS MONITORS
The Model 2112 features eight front panel LEDs that monitor
power, the Ethernet signals, network connection and test modes.
Figure 4 (below) shows the front panel location of each LED.
Following Figure 4 is a description of each LEDs function.
TD & RD Glows red to indicate an idle condition of Binary
“1” data on the respective terminal interface signals.
Green indicates Binary “0” data.
CTS Glows green to indicate that the Clear to Send
signal from the modem is active.
CD Glows red if no carrier signal is being received from
the remote modem. Green indicates that the remote
modem’s carrier is being received.
DTR Glows green to indicate that the Data Terminal
Ready signal from the terminal is active.
ER Glows red to indicate the likelihood of a Bit Error in
the received signal. During the 511 or 511/E test, ER
will flash to indicate that the Test Pattern Detector
has detected a bit error.
Figure 4. Model 2112 Front Panel
WARNING! There are no user-serviceable parts in
the power supply section of the Model 2112. Voltage
setting changes and fuse replacement should only be
performed by qulified service personnel. Contact
Patton Electronics Technical Support at (301)975-
1007, via our web-site at www.patton.com, or by email
at support@patton.com for more information