Specifications

Cascade Modem Manual
Copyright © 2007 Diamond Traffic Products, Inc
Page 6
1.4. Installation
The Cascade Modem is easy to install. Simply connect the telephone line, serial cable (at 19200buad), and power
connector and the modem is ready to use. It is highly recommended that you connect the surge suppressor lug
directly to your ground rod (earth ground) using a minimum of 18 gage wire.
When the power is connected the status LED will light for about 3 seconds and then start blinking steadily. If no
calls are made to the modem or if no device (such as a traffic counter) communicates to the modem, then it will
enter standby mode in about 5 minutes where the LED will flash briefly every 15 seconds.
Power Options:
The modem can always be powered through the power input jack on the side of the case. A DC voltage from 5 to 40
volts is allowed. In addition, there is a set of jumpers on the board which allow power to be fed into the modem
from either the Ring Pin of the DB9 (pin 9) or through the Shield wire of the serial cable.
Newer Diamond Traffic Products traffic counters support feeding power out to the modem through the standard
serial cable on pin #9 (Ring). Newer DTP counters do not need the Ring signal, so this extra pin is used to provide
a convenient way to power the modem. Contact Diamond Traffic for more information on this option.
See section 2.1, Jumper Settings, for more information on selecting the power input source as well as other options.