To: Pat Hickey, Lane Abrams

December 20, 2007

To: Pat Hickey, Lane Abrams From: Paul Fucile Re: Trackpoint II Status

Trackpoint Command and Display Module (C/D M) Deck Unit SN 118 was tested and received a modest refurb (Fan was replaced, a wire to the reset button was broken, and the unit was cleaned) during December 2007. This unit had been in storage since August of 1997 by Lane. This is the only Trackpoint unit at WHOI. Penny Hilliard searched for another unit and could only find SN118 in her records. The notes for this work and installation topics are as follows.

After making up the cabling, the unit was powered up with the Model 4740A Vertical Reference Unit (VRU) SN 223 without the transducer. A test load of 330 Ohms was placed across the output of the transmitter. The transmitter is wired for ‘low’ or 100 Watt output.

Software is 8.02B.

The display colors are good and the lines are clear. The display controls function work. The Focus knob appears to control the contrast. The text and lines never go out of focus.

The back up battery was at 1.25 V

The CPU diagnostics were run. Memory and all other conditions pass.

The transmitter was tested and developed a 368 Vpp square wave into a 330 Ohm load. The main storage capacitor (10,000 uf/100V shows a crack in the plastic cover which may be due to a slight bulging. The power supply for the transmitter measures at 84.5 V. The schematic shows this test point (TP1 with respect to TP2) to be 85V.

The clock which for a circa 1985 circuit remained Y2K compliant and was off by 12 days. This drift was probably due to the lower than normal backup battery voltage. At 13:05:00 on 12/20/07 the unit reads 07:27:32 on 12/08/07. The battery has not been replaced.

The clock was updated to EST on 12/21/07 at 12:45.

The unit was initially tested with a type 4211 Transducer SN153. EPROMS for location U46 and U47 (marked 22153) were installed on the memory board.

The supply rails are +/- 10.0 V instead of +/- 12.5V. The menu settings are:

Reply Frequency 8.0 KHz

Xmit and Key Out Disabled

Hydrophone Offsets all set to 0

Smoothing Off

Filter level Off

Threshold Low

Interrogate Data

Freq (KHz) 16.0

Xmit Interval 2.0

Pulse Width 5.0

Temperature Manual 22.8

Speed of Sound 1500.0

Water Salinity 35

RS-232 Units Meters

RS-232 Format Format 2

9600 Baud, 8 Data, 1 Stop

Compass Off

0 Degree Voltage 0 Volts

360 Degree Voltage 5.0 Volts

Compass Offset 0.0 Video Aspect Ratio 100.0

Grid 250 M

Priority Target Off

Track Plotting Off

Track Length 40

Vessel Length 0

Vessel Width 0

Alarms All set to 0

Cabling: The deck cables can be viewed as being in two segments. The first is the cable that runs from the C/D M to the VRU. The second segment contuse from the VRU to the Transducer. The signals are handled over 7 twisted pairs that are bundled into a single cable. The transducer is driven by a 380 Vpp square wave, so the break down spec should be at least 600 V. The pin connections are almost identical for both cables.

In the VRU, one pair is doubled up by a jumper at the connector. These are the lines used to drive the transducer. The shields are tied together in the shell (check this).

Cable #1

Amphenol MS3102A-28-16S from C/D M to VRU XSM-BCL-24

A 1 WHT ‘A’ Signal High 8 B 1 BLK ‘A’ Signal Low 12 M 1 SHLD ‘A’ Signal Shield 13

K 2 WHT ‘B’ Signal High 1 J 2 BLK ‘B’ Signal Low 3 T 2 SHLD ‘B’ Signal Shield 4

U 3 WHT ‘B’ Signal High 5 V 3 BLK ‘B’ Signal Low 9 L 3 SHLD ‘B’ Signal Shield 10

C 4 WHT ‘X’ Roll 14 D 4 BLK ‘Y’ Roll 18 N 4 SHLD ‘X-Y Roll Shield 19

S 5 WHT Temperature 17 H 5 BLK Not Designated 21 R 5 SHLD Temperature Shield 22

Q 6 WHT Transmit High 15 P 6 BLK Transmit Low 11 R 6 SHLD Transmit Shield 16

E 7 WHT +12.5 V 2 F 7 BLK -12.5 V 6 G 7 SHLD +/- 12.5 Return 7

Cable #2

Amphenol MS3102A-28-16S from VRU to Transducer XSM-BCL-24

A 1 WHT ‘A’ Signal High 8 B 1 BLK ‘A’ Signal Low 12 M 1 SHLD ‘A’ Signal Shield 13

K 2 WHT ‘B’ Signal High 1 J 2 BLK ‘B’ Signal Low 3 T 2 SHLD ‘B’ Signal Shield 4

U 3 WHT ‘C’ Signal High 5 V 3 BLK ‘C’ Signal Low 9 L 3 SHLD ‘C’ Signal Shield 10

C 4 WHT Temperature In 14 D 4 BLK Temperature Control 18 N 4 SHLD Temperature Common \19

S 5 WHT Transmit High 17 H 5 BLK Transmit High 21 R 5 SHLD Transmit Shield 22

Q 6 WHT Transmit Low 15 P 6 BLK Transmit Low 11 R 6 SHLD Transmit Shield 16

E 7 WHT +12.5 V 2 F 7 BLK -12.5 V 6 G 7 SHLD +/- 12.5 Return 7 C/D M Installation: The C/D M can be tested by connecting a 330 test load to across the main output lines.

VRU Installation:

There are apparently no provisions for ‘Locking’ down the VRU sensing element. The box would be mounted in an upright position to a bulkhead at the rotational center of the ship.

The signals from the VRU are passed to the deck unit.

Shipping Check List 04/09/08

Trackpoint II Deck Unit, Model 4401A, SN 118

Transducer, Model 4211A, SN 153

Transducer, Model 4211ALF, SN 213

Trackpoint Vertical Reference Unit (VRU), SN 223

Trackpoint Deck Box to VRU Cable (100 feet)

Trackpoint VRU to Hydrophone cable with termination block

Documentation, Operation and Maintenance Manual for Trackpoint II System

Documentation, Operation Manual for Hydrophone

Mounting flange

Transmitter Board

Not sent:

Seacon XSM24CCP connector body (for connecting to hydrophone)

GL4000-24-48P AC-43180-06 (Nortronics cable connector)

Benthos Transponder in yellow pressure case, SN #266

Updated 04/09/08 prior to shipping