RadioFrame Networks Inc DH2 User Manual
RadioFrame System
Pre-Installation
RFN_3.1 Beta
39
AC Data Part #
Application
Clamp Voltage
TJ1010B
T1/E1 Surge Suppression, SAD + Gas Tube Hardwire
and/or RJ connection
and/or RJ connection
10 V
TJ3010B
T1/E1 Surge Suppression, SAD + Gas Tube Hardwire
7 V
3.3.10 Cable
Support
This section describes requirements for cabling within equipment cabinets and
racks. Cabling within racks and cabinets shall conform to the requirements of
NFPA 70, Article 300, Article 800, Article 810, and Article 820. (Refer to
ANSI/TIA/EIA-568(a) and 569(a) for additional information.)
racks. Cabling within racks and cabinets shall conform to the requirements of
NFPA 70, Article 300, Article 800, Article 810, and Article 820. (Refer to
ANSI/TIA/EIA-568(a) and 569(a) for additional information.)
All cables shall be installed and routed so that personal safety and equipment
functionality is not compromised and that all equipment is accessible for
servicing. The following requirements apply to cabling installed in racks or
cabinets.
functionality is not compromised and that all equipment is accessible for
servicing. The following requirements apply to cabling installed in racks or
cabinets.
3.3.10.1 Securing cabling within racks or cabinets
To help prevent damage or accidental disconnection, cables and conductors
shall be secured at intervals of no more than 3 ft (91 cm). Attachment shall be
accomplished in a manner that does not restrict access to the equipment in the
rack or cabinet.
shall be secured at intervals of no more than 3 ft (91 cm). Attachment shall be
accomplished in a manner that does not restrict access to the equipment in the
rack or cabinet.
Insulated standoffs are recommended for use in racks or cabinets. The standoffs
should be of sufficient length to maintain the proper cable separation.
should be of sufficient length to maintain the proper cable separation.
Nonmetallic cable ties shall be used to secure cables and conductors.
Attachment shall be tight enough to secure cables without crushing them.
Attachment shall be tight enough to secure cables without crushing them.
Cables that span a gap greater than 2 ft (61 cm) shall be supported.
3.3.10.2 Routing cables within racks and cabinets
Grounding conductors within racks or cabinets shall be routed toward the RGB,
MGB, SSGB, or ground bus conductor. Connections to the RGB or ground bus
conductor shall always be made with the equipment grounding or tap conductors
being routed toward the MGB, SSGB, or RGB.
MGB, SSGB, or ground bus conductor. Connections to the RGB or ground bus
conductor shall always be made with the equipment grounding or tap conductors
being routed toward the MGB, SSGB, or RGB.
At points where grounding conductors must pass through a hole in a metallic
surface and the hole is slightly larger than the conductor, the conductor shall be
bonded to the metallic surface through which it passes. If the hole or opening is
much larger than the conductor, and it is intended to accommodate several
conductors, the conductor is not required to be bonded.
surface and the hole is slightly larger than the conductor, the conductor shall be
bonded to the metallic surface through which it passes. If the hole or opening is
much larger than the conductor, and it is intended to accommodate several
conductors, the conductor is not required to be bonded.
Cables in racks or cabinets shall be sized to length, and shall be installed and
routed neatly and in a professional manner.
routed neatly and in a professional manner.
Excess cable shall not be coiled on top of cabinets or racks.