2-11
6 DC ON / OFF Controls the power supply DC output
7 DS1 Lit when the power supply is on
8 F1
Fuse (3 or 5 Amp) to protect against AC power
overload
9 TB1
Terminal Block (TB) provides line power input and
output connections
2.5.4 8 Ampere Power Supply Field Replaceable Parts
Table 2-2 8 Ampere Power Supply Field Replaceable Parts
Part No. Description
FPN5128 8 Ampere Power Supply (115VAC)
FPN5228 8 Ampere Power Supply (230VAC)
6580373L90 F1 (FPN5128) Fuse 3AG 5.0 Amp 250V MIL-F-15160/2
6580373L91 F1 (FPN5228) Fuse 3AG 3.0 Amp 250V Slow-Blow
6580373L92
F2 (FPN5128, FPN5228) Fuse 3AG 10 Amp 32V Slow-
Blow
(Little fuse p/n: 313 010 ID)
2.5.5 Electrical Connections for 45 VA Power Transformer
The 45 VA main power transformer is used for AC power connections with
Portable Radios ONLY. The 45 VA transformer provides AC power to the power
supply module (More), which in turn provides the DC power to the portable radio,
the IRRInet-XL RTU, and to the RTU Backup Battery.
The following 45 VA Power Transformer Models are used:
1. FPN5554 – 115VAC, 45 VA
2. FPN5598 – 230 VAC, 45 VA
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