Caution:
NEVER look into optical fibres or optical output connections. Always use optical power
meters to determine operation or signal level.
Warning:
Testing may leave capacitors charged to dangerous voltage levels. Discharge
capacitors by rediucing test voltages to zero before disconnecting test leads.
Caution:
Operate the equipment within the specified electrical and environmental limits.
Caution:
Before cleaning the equipment, ensure that no connections are energised. Use a lint
free cloth dampened with clean water.
Note:
Contact fingers of test plugs are normally protected by petroleum jelly, which should not be removed.
4.3
UL/CSA/CUL REQUIREMENTS
The information in this section is applicable only to equipment carrying UL/CSA/CUL markings.
Caution:
Equipment intended for rack or panel mounting is for use on a flat surface of a Type 1
enclosure, as defined by Underwriters Laboratories (UL).
Caution:
To maintain compliance with UL and CSA/CUL, install the equipment using UL/CSA-
recognised parts for: cables, protective fuses, fuse holders and circuit breakers,
insulation crimp terminals, and replacement internal batteries.
4.4 FUSING REQUIREMENTS
Caution:
Where UL/CSA listing of the equipment is required for external fuse protection, a UL or
CSA Listed fuse must be used for the auxiliary supply. The listed protective fuse type is:
Class J time delay fuse, with a maximum current rating of 15 A and a minimum DC
rating of 250 V dc (for example type AJT15).
Caution:
Where UL/CSA listing of the equipment is not required, a high rupture capacity (HRC)
fuse type with a maximum current rating of 16 Amps and a minimum dc rating of 250 V
dc may be used for the auxiliary supply (for example Red Spot type NIT or TIA).
For P50 models, use a 1A maximum T-type fuse.
For P60 models, use a 4A maximum T-type fuse.
P446SV Chapter 2 - Safety Information
P446SV-TM-EN-1 21
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