Chapter 5. Connector pin-outs
5.1 Main power and data
The connector is an Amphenol non standard 12‑pin 4‑fibre / 8‑copper “mil-spec” plug, conforming to MIL‑DTL‑38999 Series III (formerly MIL‑C‑38999). It has an aluminium alloy body with black zinc/nickel plating. The standard part number is TVP00ZN-15-97PN-LC where the N indicates a standard key used for the 24 V DC version of the Orcus OBS The 56 V DC version has connector part number TVP00ZN-15-97PA-LC where the A indicates a specific key used for the high voltage version of the Orcus OBS |
(item shown has different pin arrangement) |
Pin | Function | Pin | Function |
A | Main power supply V- | G | Fibre Optic Rx from surface |
B | Auxiliary power supply V+ | H | not connected |
C | Fibre Optic Tx from bottom | J | not connected |
D | Auxiliary power supply V- | K | Acoustic release battery charger positive supply V+ (optional) |
E | Main power supply V+ | L | Fibre Optic 3 |
F | Acoustic release battery charger negative supply V- (optional) | M | Fibre Optic 4 |
| Wiring details for the compatible socket, as seen from the cable end. The 56 V DC version with armoured rising cable has a socket—Amphenol titanium connector TV06ZN-15-97SA-LC—at Orcus OBS side. |
Note: Since this is a fibre-optic connector, great care must be taken to keep it absolutely clean when mating or disconnecting the cable.
5.2 Auxiliary system with Ethernet, current meter and pressure gauge
The connector is a 16-pin SubConn Micro Circular MCBH16F female bulkhead connector. It is an underwater pluggable electrical connector that has enhanced sealing capability and utilises a uniform contact size. |
|
Pin | Function | Pin | Function |
1 | Ch1 Power ground | 9 | Aux system power ground |
2 | Ch1 positive output 12 V+ | 10 | Aux system positive output 24 V+ |
3 | RS232 Ch1 received data | 11 | Aux. system Ethernet Tx+ |
4 | RS232 Ch1 transmitted data | 12 | Aux. system Ethernet Tx- |
5 | Ch2 positive output 12 V+ | 13 | Aux. system Ethernet Rx+ |
6 | Ch2 Power ground | 14 | Aux. system Ethernet Rx- |
7 | RS232 Ch2 received data | 15 | not connected |
8 | RS232 Ch2 transmitted data | 16 | not connected |
| Wiring details for the compatible socket, MCIL16M, seen from the cable side – i.e. as when assembling |
Note: Subconn connectors should be lubricated with Molykote 44 silicone grease before mating.
5.3 Hydrophone inputs
The connector is a 12-pin SubConn Micro Circular MCBH12F female bulkhead connector witted with a DLSA-M locking sleeve The mating connector, SubConn MCIL12M, is widely available. A DLSA-F locking ring is required. |
|
Pin | Function | Pin | Function |
1 | Hydrophone 1 power ground | 7 | Hydrophone 2 Signal+ |
2 | Hydrophone 1 power supply 10 V+ | 8 | Acoustic release battery charger power ground (optional) |
3 | Hydrophone 1 Signal+ | 9 | Acoustic release battery charger power supply 15 V+ (optional) |
4 | Common Shield | 10 | Not connected |
5 | Hydrophone 2 power ground | 11 | Not connected |
6 | Hydrophone 2 power supply 10 V+ | 12 | Not connected |
| Wiring details for the compatible plug, MCIL12M, seen from the cable side – i.e. as when assembling |
Note: Subconn connectors should be lubricated with Molykote 44 silicone grease before mating.
5.4 INGV Variant
The connector is a 13-pin SubConn Micro Circular “Power + Ethernet” DBH13M-TI male bulkhead connector with DLSA-M locking sleeve. The mating connector, SubConn DIL13F (with DLSA‑F locking sleeve), is widely available. |
|
Pin | Function | Twisted pairs | Colour |
1 | not connected | Black | |
2 | not connected | Screen (orange wire on bulkhead) | |
3 | Serial Ground | White | |
4 | Serial Tx | ∫ | Brown |
5 | Serial Rx | Brown/white | |
6 | not connected | ∫ | Blue |
7 | not connected | Blue/white | |
8 | Ethernet Tx- | ∫ | Orange |
9 | Ethernet Tx+ | Orange/white | |
10 | Ethernet Rx- | ∫ | Green |
11 | Ethernet Rx+ | Green/white | |
12 | Power +24 V DC | Red | |
13 | Power 0 V | Green |
| Wiring details for the compatible plug, DIL13F, seen from the cable side – i.e. as when assembling |
Note: Subconn connectors should be lubricated with Molykote 44 silicone grease before mating.
5.5 Hydrophone
The connector is a 4-pin SubConn Micro Circular MCIL4M male in-line connector with an MCDLS‑F locking ring. The mating socket, SubConn MCIL4F, is widely available. An MCDLS-M locking sleeve is required. |
|
Pin | Function |
1 | Power supply positive +3.3 V DC |
2 | Power supply negative and signal ground |
3 | Non-inverting (+) signal output |
4 | Inverting (-) signal output |
| Wiring details for the compatible socket, MCIL4F, seen from cable end (i.e. as when assembling). |
Caution: Do not apply any voltages to the signal output or you will permanently damage the hydrophone.
Note: Subconn connectors should be lubricated with Molykote 44 silicone grease before mating.