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Frequently asked questions about cords + connectors

Most questions about product assembly and operation are covered in the product instruction manual. Please read your manual thoroughly before attempting to operate your Ikelite equipment.

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Assembly + use

Some non-Ikelite brands of lubricants have been known to cause softening and swelling of our o-rings. We recommend using only Ikelite silicone lubricant on all of our o-rings to prevent potential problems or flooding.

No. The caps including with our sync cords are intended to be dust caps for storage only. The caps fit loosely on the ends to prevent the o-rings from taking a set over long periods of time. There is not enough pressure exerted on the o-ring to keep the end watertight at depth. Diving with a dust cap on your sync cord will result in a damaged cord.

Housings that have two Nikonos style bulkheads are not always wired correctly to utilize dual strobes with one strobe attached to each bulkhead. Dual strobes (one connected to each bulkhead) may not operate correctly if both bulkheads connect all five conductors to the camera. Five conductors from each bulkhead would allow either strobe to operate TTL, but not both simultaneously. One should have five conductors and the other connect only three conductors for dual strobe operation.

We have seen Aquatica, Seacam, Nexus, and Subal housings with two Nikonos style bulkheads wired with all five conductors connected to the camera, requiring a dual cord attached to just one bulkhead. The manufacturer should be able to tell you if their wiring is compatible with accepted protocol.

Absolutely not. Do not use TTL sync cords with very old non-TTL (orange- or black-colored) Ikelite strobes that have only four connectors (no center contact) in the bulkhead. Non-TTL sync cords MUST be used with these strobes. These strobes were made before TTL existed, and a TTL sync cord on these old strobes will apply 360 volts to a Nikonos V camera which fries it instantly.

Sorry, but the answer to your next question is also no. We no longer make Polaroid camera housings or non-TTL Ikelite sync cords.

Test firing

Yes. Use the appropriate diagram below to help in testing and analysis of Ikelite sync cords and strobes. If a sync cord is attached to the strobe, for example, the diagram indicates which pins on the other end of the cord can be connected with a paper clip to test the strobe functions. If continuity of a cord is being tested, the diagrams indicate the matching connector on the other end of the cord. You can use a multimeter to test continuity.

Please pay attention and exercise extreme caution when using these wiring diagrams to test fire your strobe. Shorting across the incorrect connectors can cause damage to your strobe. Equipment may be returned to us at any time without prior authorization for testing and repairs as necessary.

Look at the Ikelite bulkhead as installed on DS strobes and TTL housings, with pins on the bottom as shown at right. Connecting C (ground) to E (trigger) should fire the strobe. The complete wiring explanation is as follows:

test-ike-bulkhead
  • A = Ready Light (red wire)
  • B = Quench (green wire)
  • C = Ground (black wire)
  • D = Power for TTL Circuitry
  • E = Trigger (white wire)

The colors listed above are provided only for reference in the assembly of an Ikelite bulkhead. Wire colors are not visible in fully assembled bulkheads as found in products.

Look at the Ikelite sync cord plug connector which attaches to DS strobes and TTL housings, with pins on the top as shown at right. Connecting C (ground) to D (trigger) should fire the strobe. The complete wiring explanation is as follows:

test-ike-cord
  • A = Quench (green wire)
  • B = Ready Light (red wire)
  • C = Ground (black wire)
  • D = Trigger (white wire)
  • E = Power for TTL Circuitry

The colors listed above are provided only for reference in the assembly of an Ikelite bulkhead. Wire colors are not visible in fully assembled bulkheads as found in products.

Look at the Nikonos sync cord plug connector, with the index groove on the bottom as shown at right. Connecting B (ground) to D (trigger) should fire the strobe. The complete wiring explanation is as follows:

test-nik-cord
  • A = 3.3 K Ohm Resistor
  • B = Ground (black wire)
  • C = Quench (green wire)
  • D = Trigger (white wire)
  • E = Ready Light (red wire)

The colors listed above are provided only for reference in the assembly of an Ikelite bulkhead. Wire colors are not visible in fully assembled bulkheads as found in products. The wiring diagram shows a newer plug with 5 receptacles. This wiring is the same as older cords with three receptacles (in B, D, and E positions) and two pins (in A and C positions).

Ikelite Frequently Asked Questions

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