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COMSPHERE 3800 Series Modems – Model 3830
2-2 August 1998 3830-A2-GB91-30
• Two ferrite chokes and cable ties
• Fax software and documentation (if fax option installed)
If any hardware components are damaged, notify your service
representative. Return equipment using the procedures described in the
Government Requirements and Equipment Return section in the front
of this book.
Customer-Supplied Equipment
The following customer-supplied equipment is required to complete a
data communications system using Model 3830 modem:
• A DTE with an available EIA-232-D serial port.
• A standard EIA-232-D male-to-female cable with a male
DB-25-S connector at one end to attach to the modem.
• An ac line cord with an IEC 320 connector and appropriate wall
plug if using the 220-240V power transformer.
• One of the following modular dial or leased network interfaces:
– RJ11C for dial permissive applications
– JM8 for leased-line applications only
Model 3830 Installation
Before installing your standalone modem, make sure your installation
site is clean and well-ventilated. Allow space around the modem for
installing cables and telephone cords, and make sure the modem is
located within reach of the ac power outlet. The distance between your
modem and DTE should be minimized if DTE data rates exceed
19,200 bps. Also, low capacitance cables may be necessary for speeds
greater than 19,200 bps or distances greater than 50 feet.
The rear panel of the Model 3830 (Figure 2-1) modem has the
following switches and connectors:
• An ON/Off power switch.
• A 5-pin DIN type power receptacle for ac power transformer.