CANOGA PERKINS 2240 Fiber Optic Modem - Manual (Page 5)

2240 Fiber Optic Modem User Manual
5
Grounding
The 2240 is suitable for installation as part of the Common Bonding Network (CBN). The 2240 is
provided with a safety ground connection which is capable of conducting any fault current likely
to be imposed, such as fault current from sources within the chassis. The unit will be grounded
using the ground conductor of the power cord and must be connected to an earthed mains
socket-outlet.
An electrical conducting path should exist between the 2240 chassis and the metal surface of the
enclosure or rack in which it is mounted or to a grounding conductor. Electrical continuity should
be provided by using thread-forming type mounting screws that remove any paint or non-
conductive coatings and establish a metal-to-metal contact. Any paint or other nonconductive
coatings should be removed on the surfaces between the mounting hardware and the enclosure
or rack. The surfaces should be cleaned and an antioxidant applied before installation.
Lightning Protection
The intra-building ports of the 2240 are suitable for connection to intra-building or unexposed
wiring or cabling only. The intra-building ports of the equipment or subassembly MUST NOT be
metallically connected to interfaces that connect to the OSP or its wiring. These interfaces are
designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in GR-
1089-CORE, Issue 4) and require isolation from the exposed OSP cabling. The addition of
Primary Protectors is not sufficient protection in order to connect these interfaces metallically to
OSP wiring.
To protect the port against intra-building lightning surges, the ports of the 2240 are suitable for
connection to shielded intra-building cabling grounded at both ends.
ESD
The 2240 has been tested and passes the ESD requirements of test level 4 for air and contact
discharges. Protecting the exposed components from electrostatic damage when removing
or replacing the modules requires the proper use of static mitigation procedures such as
properly wearing a wrist strap.
Operation Temperature
The 2240 is designed and Nationally Recognized Test Laboratory (NRTL) tested and verified to
operate between 0°C to 50°C, and type tested for short term emergency ambient temperature of
-5°C to 55°C.
Emissions and Immunity
This device complies with part 15 of the FCC rules. Operation is subject to the following two
conditions:
1. This device may not cause harmful interference