Furuno DS-50 Operator's Manual page 9

Specifications of DS-350/351 Digital Display (option)
1. Display device
2. Indication
Speed
Unit
Direction
Mode
Depth (clearance)
3. Other features
4. Power consumption
Specifications of DS-370 Distribution Box (option)
1. Input signal (TTL level)
2. Output signal
(1) OTX board
(2) ODD board
(3) OAD board
(4) OLG board
(5) OAC board
(6) OAV board
3. Power supply and power consumption
DS-350: LCD, DS-351: LED
Fore/Starboard: .
Port/Starboard: .
(Fore/Aft),
Ground or Water tracking
. m
Dimmer controls, Mode selector, Unit of speed selector
DS-350: 12 VA, DS-351: 44 VA
Digital speed signal
Log signal (400 p/NM)
Alarm signal
Power on/off signal
The following output boards are available optionally.
Serial signal for DS-350/351 Digital Indicator and/or cascade
connection of DS-370 Distribution Box (1 port /1board)
BCD serial signal for DS-720/DS-370/DS-377 Digital Display
(Analog current signal for analog display, 1 board), -2.5mA to
10.0 mA/-10kn to 40kn or -3.33mA to 10.0mA/ - 10kn to 30kn
Analog current signal for analog display, 1 board, -2.5mA to
10.0 mA/-10kn to 40kn or -3.33mA to 10.0 mA/-10kn to 30kn
For Distance Indicator (1 port /1 board) and Log signal (3 ports
/1 board, 200/400 p/NM contact closure signal, 30V/0.2A or
RS-422 current loop signal). One Log signal port can be
modified for Fore/aft status signal port (contact closure signal,
30 V/0.2A or RS-422 current loop signal).
Ship's speed current voltage signal (1 port /1 board), Cur-rent
signal (4.0mA to 20.0 mAI-10kn to max, speed,
max impedance: 250 ohms)
Ship's speed voltage signal (1 port / 1board), voltage signal
(-2.50 to 10.0 V/-10kn to 40kn, -3.33 V to 10.0 V/-10kn to
30kn, -4.00 V to 10.0 V/-10kn to 25kn, -5.00 V
to10.0V/-10kn to 20kn,max,impedance: l kohm)+ Fore aft
status signal (RS-422 current loop)
115/230 VAC, 1φ,50/60 Hz, 50 VA max
3
(Port/Starboard)