Cable splices
OmniTrax Product Guide Page 143
13. Slide the heatshrink over each cable splice and apply heat to seal the heatshrink (see Sealing
the heatshrink over decouplers/splices on page 133).
14. Partially backfill the trenches to hold the cables in place.
Lead-in cable splices (OC2 sensor cable)
You can add lead-in cable to increase the length of the 20 m of integral lead-in cable supplied with
each OC2 sensor cable. However, there are rules that must be followed.
Splicing in additional OC2 lead-in cable (10 m or less)
Repeat this procedure for both the TX and RX cables.
1. Determine the additional length of lead-in cable that you require (maximum 10 m).
2. Measure and cut the required lengths of non-detecting cable.
3. Install male TNC connectors on the cut ends of the additional lead-in cables.
4. Splice the non-detecting cable to the integral lead-in cable using a female TNC coupler and
30 cm of heatshrink.
Splicing in additional OC2 lead-in cable (greater than 10 m)
Repeat this procedure for both the TX and RX cables.
1. Determine and obtain the additional length of lead-in cable that you require.
2. Lay out the OC2 sensor cable.
3. Measure and cut off a length of detecting cable at the start section, indicated by the red band,
that is equal to the full length of lead-in cable that you require minus 20 m (the length of the
integral lead-in cable). Label and retain the cut off section of cable.
4. Install a male TNC connector on the cut end of the detecting cable.
5. Measure and cut a length of lead-in cable (the full length of lead-in you require).
6. Install 10 ferrite beads and two male TNC connectors on the replacement section of lead-in
cable.
7. Splice the lead-in cable to the detecting cable with a female TNC coupler and 30 cm of
heatshrink.
Lead-in cable splices (SC1/SC2 sensor cable)
You can add lead-in cable to increase the length of the 20 m of integral lead-in cable supplied with
each SC1/SC2 sensor cable. However, there are rules that must be followed.
Splicing in additional SC1/SC2 lead-in cable (15 m or less)
To add 15 m, or less, of lead-in cable, you can splice the additional lead-in to the end of the
existing lead-in cable. No other changes are required.
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