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Cables
Safety Warning
Conditions
The port indicated by the label "SAFETY WARNING: See
Instructions for Use" does not provide sufficient isolation to
satisfy the requirements of the relevant parts of standard
BS6301. Any product connected to this port must meet one of
the following conditions:
•
Be covered by the general approval NS/G/1234/J/100003
•
Have been approved to the relevant parts of standard
BS6301
•
Have previously been evaluated against British Telecom
(Post Office) Technical Guide 2 or 26 and given permission to
attach
Any other use of this product invalidates approval.
Direct or indirect interconnection of the port marked "SAFETY
WARNING: See Instructions for Use" as indicated above,
whether the ports are marked or not, may produce hazardous
conditions on the network. You should obtain advice from an
engineer before making such a connection.
Equipment Between the DSW21 Adapter and a Digital Circuit
Equipment
Requirements
If any other equipment, including cables or wiring, is to be
connected between the DSW21 Synchronous Communications
Adapter and any digital Postal Telephone and Telegraph (PTT)
circuit, that equipment must conform as follows:
•
The overall transmission characteristics of all other
equipment must not have any material effect on the
electrical conditions between the equipment and the digital
circuit.
B–2 DSW21 Synchronous Communications Adapter Installation Information for the United Kingdom