3-23
3.1.4
2050-DSS Main I/O Interface (J1)
The 2050 Tow fish Electronics Bottle has a TOW/ROV Main I/O connection. The system is designed to run
on the standard 375VDC with telemetry powered from a standard EdgeTech topside. The Main I/O also
has connections to be powered from an ROV. The Main power is 48VDC. The power required is 150 Watts
with the ability to sustain a voltage drop of no more than 5VDC during transmit cycles. The main I/O
ethernet address is 192.9.0.103, 255.255.255.0 at a link rate of 10/100. The Ethernet wiring is to the
T568B standard for 10BaseT/100BaseT. The Main I/O to tow cable adapter that is provided with the tow
fish is 0002915.
Figure 3-5: Tow Cable to Electronic Bottle Diagram (002915)
CONNECTOR J1
(MCBH8M)
DEFAULT WIRING
1
0 VDC (375V RTN)(Tow cable)
2
+375 VDC (Tow cable)
3
0 VDC (48V RTN)
4
+48 VDC
5
Ethernet (T)
6
Ethernet (Transmit-)
7
Ethernet ()
8
Ethernet (Receive-)
Table 3-1: Main I/O Interface Cable Pin Outs
