Specifications

Site Requirements and Prerequisites 2-1
Chapter 2
Installation and Setup
This chapter describes installation and setup procedures for the standalone
FOM-40 modem.
FOM-40 is delivered completely assembled. It is designed for tabletop or 19-inch
rack installation. For instructions on installing one or two units in a 19-inch rack,
refer to the guide that comes with the rack mount kit.
To check normal operation after installing the unit, see Chapter 3.
For instructions on how to configure the unit, see Chapter 4.
For test and diagnostic instructions, see Chapter 5.
Internal settings, adjustment, maintenance, and repairs may be performed
only by a skilled technician who is aware of the hazards involved.
Always observe standard safety precautions during installation, operation, and
maintenance of this product.
2.1 Site Requirements and Prerequisites
Install an AC-powered FOM-40 within 1.5m (5 ft) of an easily accessible grounded
AC outlet that supplies 100–240 VAC.
A DC-powered FOM-40 unit requires a –48 VDC or 24 VDC power source, which
must be adequately isolated from the mains supply. To prevent a fire hazard,
install a suitable fuse on the DC line.
Allow at least 90 cm (36 in) of clearance in the front for operating and
maintenance accessibility. Allow at least 10 cm (4 in) of clearance in the rear for
routing signal lines and interface cables.
Ambient operating temperature of FOM-40 is 0° to 50°C (32 to 122°F) at 90%
relative humidity, non-condensing.
Warning