Specifications

BATS AND PORTABLE BATS INSTALLATION
2-30
2.2.9.1 DEPTH INPUTS
The analog output voltage from a depth sensor (typically located on a vehicle being tracked) con-
nects to the ANALOG input connector located on the rear panel of the Transceiver. See Figure 1-4.
The BATS converts this analog voltage (0 - 6 VDC maximum) to a target depth.
2.2.9.2 ANALOG COMPASS INPUT
The analog output voltage from a compass (0 - 6 VDC maximum) connects to the COMPASS input
of the ANALOG connector. See Figure 2-15. The BATS converts this analog voltage to a vessel
heading in degrees.
2.2.9.3 VRU INTERFACE (MODEL 4414B)
The VRU input of the ANALOG connector accepts PITCH and ROLL analog signals from an external
dynamic motion sensing system, such as the EdgeTech Model 4414B. The pitch and roll signals
compensate target position for vessel motion. The analog inputs can accept voltages up to +/-10
VDC. See Figure 2-16 for supplied cable assembly. The normal vessel motion for a positive Voltage
pitch is BOW UP and the normal vessel motion for a positive Voltage roll is PORT UP. The polarity of
the analog input signals to the Transceiver can be reversed and compensated for in the REMOTE
VRU POLARITY menu. Normal polarity for pitching bow up is (+) and for rolling port side up is (+).
The VRU scaling can also be modified under the REMOTE VRU SCALE menu. Normal scaling LINEAR
is 0.2 V/degree (+/- 10VDC = +/-50°). (optional scaling is 10 sin )
NOTE: For a Remote VRU the normal voltage polarity for pitching BOW UP is [+]. The nor-
mal voltage polarity for rolling PORT UP is [+]. The system configuration software
(Trackman) shows the roll and pitch polarity [+] when the vessel pitches BOW UP or
rolls PORT UP. The RS232 Format STD W/PR (standard format with pitch and roll at
end of data string) also outputs data with this same protocol. The RS232 Format
NMEA ORE (NMEA 0183 type format string that is proprietary to EdgeTech and in-
cludes pitch and roll data at end of string) is different in that it outputs data in the
same polarity as its incoming voltage. This allows pass-through of signals from re-
mote VRU to integrated navigation system without modification of polarities.
When using the Model 4730B VRU setup the Attitude Sensor for Internal. This auto-
matically sets up the parameters to agree with this standard EdgeTech sensor.
Connect the pitch signal to pin-L and the roll signal to pin-S. Connect the analog commons to pins-
P & R respectively.