RAD Data comm LRS-24 operation manual Safety Warnings, Ports Safety Status

Safety Warnings

SEE INSTALLATION INSTRUCTIONS BEFORE CONNECTING TO THE SUPPLY!

The exclamation point within a triangle is intended to warn the operator or service personnel of operation and maintenance factors relating to the product and its operating environment which could pose a safety hazard.

Always observe standard safety precautions during installation, operation and maintenance of this product. Only a qualified and authorized service personnel should carry out adjustment, maintenance or repairs to this instrument. No adjustment, maintenance or repairs should be performed by either the operator or the user.

Telecommunication Safety

1.The unit should be installed within 1.5m (5 feet) of a grounded, easily accessible AC outlet, or in an adequately earthed rack mount. If the protective earth connection is not guaranteed by the mains supply, the unit must be externally connected to a reliable protective earth. DC powered units must be connected only to power sources which conform to the relevant safety standard.

2.In order to guarantee an uninterrupted flow of air stream, leave at least 15 mm spacing above and below the top and bottom sides of the unit. The recommended maximum temperature of the surrounding area is 40°C.

3.Vacant slots must always be covered with blank covers. This is necessary in order to guarantee a definite cooling stream of air and to prevent unintentional and unauthorized access inside the equipment.

4.The safety status of the ports on the LRS-24 is declared according to EN 41003 and is detailed in the table below. Interconnection of these ports with other apparatus should be made so that the equipment continues to comply with the requirements of EN 60950 connection of SELV and TNV circuits to other circuits after such a connection is made.

Ports	Safety Status
V.24, V.35, V.36, X.21, RS-530,	SELV	Circuit operating with Safety Extra-Low Voltage
Unbalanced E1, E&M
Baseband modems, ISDN,	TNV-1	Circuit whose normal operating voltage is within
Balanced E1, T1, HDSL		the limits of SELV, on which overvoltages from
		Telecommunications Networks are possible.
FXS	TNV-2	Circuit whose normal operating voltage exceeds
		the limits of SELV, on which overvoltages from
		Telecommunications Networks are not possible.
FXO, Ports with remote power	TNV-3	Circuit whose normal operating voltage exceeds
feeding (phantom)		the limits of SELV, on which overvoltages from
		Telecommunications Networks are possible.

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