Installation
19 User’s Manual - SM202T/SMV23 Modem
Connecting to a Voltage Source
The back panel of the modem provides a 2-position screw terminal power interface
connector. For your convenience, the DC voltage of the input power is non-polarized. To
meet your specific application, the modems can be powered from the following power
sources:
y Model IG202T (with AC-DC power converter): 90 to 265 Volts AC, 50 to 60 Hz,
single phase or 100 to 400 VDC. The output of the converter is a 12 VDC source
that will power the modem.
y Model IG202T-DC (DC version): 10 to 60 Volts DC. The model IG202T-DC
comes with a power cord for making this connection.
Figure 2-2 on page 10 shows the connection to the Model IG202T’s power interface shows
the connection to the Model IG202T-DC’s power interface.
WARNING:
Before you connect a voltage source, observe the following power supply
voltage guidelines. Otherwise, you will void your warranty if the wrong voltage
is applied.
y Be sure the voltage source is within the permitted ranges shown
above. Otherwise, your modem and any attached devices may be
damaged.
y Customer-supplied cables must be suitable for the site
environmental conditions.
y Screw terminals on the power interface accept 24 to 16 AWG.
However, surge protection is effective only if there is a solidly
earthed ground connection greater than 18 AWG.
y Be sure the power source is not controlled by a wall switch, which
can be inadvertently turned off, shutting off power to the modem.
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