12
Oxford Technical Solutions
Connections
The RT-UPS has two leads that need to be connected for correct operation. The pin
connections are shown in Table 3 and Table 4.
The auxiliary power plug fitted to the RT-UPS’s input cable contains a five amp fuse,
which is required as part of the input protection circuit. If the fuse in the plug needs to
be replaced, it should be replaced with the Littelfuse model specified in Table 2.
Table 2. Replacement fuse
Parameter
Specification
Manufacturer Littelfuse
Part Number
0214005
Description
5 A Torpedo Type Fuse
Dimensions
25 × 6 mm Ø
Voltage Rating
36 V
Table 3. Input power lead pin configuration
Pin
Direction
Description
1
Input
Power in, 9–48 V dc. This pin is the tip of the connector (red wire).
2
Input
Input ground (black wire).
Connector: Automotive universal fused auxiliary power plug (cigar lighter plug)
Table 4. Output power lead pin configuration
Pin
Direction
Description
1
Output
Power output, 12 V, 2 A (brown wire).
2
Output
Power output, 12 V, 2 A (white wire).
3
Output
Output ground, isolated from input (blue wire).
4
Output
Output ground, isolated from input (black wire).
Connector: Binder Series 763, 4-way, socket, M12
