Metrodata FM4900, Руководство пользователя

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STATUTORY INFORMATION
5 76-02-011F
2 STATUTORY INFORMATION
2. 1 Performance
The FM4900 complies with the requirements of G.703 at 34
⋅
368 Mbps, G.751, British
Telecom specification SIN219 and BS6328 Section 8.2 Clause 5.2. It has a port defined as
5C (Unstructured operation) in the context of Oftel OTR.001. These standards permit
connection to the public 34
⋅
368 Mbps network.
The FM4900 maintains bit integrity between the network port and the DTE port.
The FM4900 should not be connected to cabling which would be required by BS6701 to be
equipped with over-voltage protection.
The worst case delay through the FM4900 is 0.6 microseconds, and the worst case round
trip delay is 2.4 microseconds.
2. 2 Safety
The following ports are designated SELV (Safety Extra Low Voltage) within the scope of
EN41003:
HSSI port (DTE port)
Terminal port
Management port
Alarm extension port
E3 Line Port (WAN port)
These ports should only be connected to SELV ports on other equipment in accordance with
EN60950 clause 2.3.
2. 3 Electromagnetic Compatibility
In order to ensure EMC compliance all signal and data cables and connectors must use a
screened connector shell with a screened cable. The cable screen must be terminated to the
screened connector shell and not connected to any pins of the connector. Failure to use the
correct connector may compromise EMC compliance.
2. 4 EN55022 Declaration
The FM4900 is a Class A product. In a domestic environment it may cause radio interference
in which case the user may be required to take adequate measures.
2. 5 FCC Declaration
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at its own expense.