Canoga Perkins EDGEACEESS 9145E, Руководство пользователя, Страница: 5 / 54

9145E Ethernet Network Interface Device User Manual
5
Surge Protection
The AC powered 9145E does not contain an internal Surge Protective Device. An external Surge
Protective Device (SPD) should be used at the AC input of the network equipment according to
facilities procedures and as defined by the National Electric Code (NEC).
Grounding
The 9145E AC & DC models are suitable for installation as part of the Common Bonding Network
(CBN).
The 9145E AC and DC are provided with a safety ground connection which is capable of conduc-
ting any fault current likely to be imposed such as fault current from sources within the chassis.
For the DC model use an approved 18ga insulated wire connected to the terminal block’s middle
conductor. The plus and minus conductors for 24 VDC and 48VDC should be a minimum of
20ga.
The AC will be grounded via 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 9145E 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 9145E are suitable for connection to intra-building or unexposed
wiring or cabling only. The intra-building port(s) 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 Pri-
mary 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 RJ45 ports of 9145E are suitable
for connection to shielded intra-building cabling grounded at both ends.
ESD
The 9145E has been tested and passes the ESD requirements of Test level 4 for air and contact
discharges. However to protect the exposed components from electrostatic damage when remo-
ving or replacing the SFP optical modules requires the proper use of static mitigation procedures
such as properly wearing a wrist strap.