Telenetics DSP 9612 - Manual (Page 27)

Installation
Page 28
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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.
™ Be sure the voltage source is within the permitted
ranges shown above. Otherwise, your modem and
any attached devices may be damaged.
™ Customer-supplied cables must be suitable for the
site environmental conditions.
™ Screw terminals on the power interface accept 24 to
16 AWG. However, surge protection is guaranteed
only if the ground wire is greater than 18 AWG and
if there is a solidly earthed ground connection.
™ Be sure the power source is not controlled by a wall
switch, which can be inadvertently turned off,
shutting off power to the modem.
Connecting an RS-232 Device
The modem back panel provides a female, 25-pin RS-232 connector
that accepts an attached RS-232 device (see Figure 2-1 on page 10).
This connector accepts a standard connection to a DTE (RTU) that
conforms to the pin assignments shown under “RS-232 (DTE)
Interface” on page 38.