Mechanical Parameter

	A50	A125
Device diameter	66 mm	125 mm
Device height	25 mm	30 mm
Device weight (air)	170 g	986 g
Device weight (submerged)	105 g	730 g
Depth rating	300 m	500 m / 3000 m
Materials	PEEK (housing) Stainless steel 316 (back plate)	Stainless steel 316 (housing) PEEK (transducer caps)
Operating temperature	-5 ~ 60 ℃	-5 ~ 60 ℃

ELECTRICAL

	A50	A125
Input voltage	10 - 30 VDC	10 - 30 VDC
Power consumption	0.25 A @ 12 V	0.25 A @ 12 V
Power-on current surge	1.25 A @ 12 V	1.25 A @ 12 V
Physical interface	: 8 wires (pwr/serial/Ethernet) : 3 meter cable (PUR 6.7 mm diameter) with interface module	: 8 wires (pwr/serial/Ethernet) : 3 meter cable (PUR 7.8 mm diameter) with interface module
Indicator	Status LED (Power, Lock)	Status LED (Power, Lock)
Communication	UART 115200 baud serial 3,3V Ethernet	UART 115200 baud serial 3,3V Ethernet
Protocols	Water Linked API	Water Linked API

Color sequence

Red	VIN	电源正极 ( 10 - 30 VDC )
Black	GND	电源负极 ( 10 - 30 VDC )
Green	ETH - RD-	以太网接收差分信号 -
Green&White	ETH - RD+	以太网接收差分信号 +
Orange	ETH -TD-	以太网发送差分信号 -
Orange&White	ETH -TD+	以太网发送差分信号 +
Brown	UART - Rx	串口接收
Brown&White	UART - Tx	串口发送

ACOUSTIC / PERFORMANCE

	A50	A125
Transducer frequency	1 MHz	420 kHz
Transducer setup	4-beam convex Janus array	4-beam convex Janus array
Transducer beam angle	22.5°	22.5°
Ping rate	4-26 Hz (adaptive to altitude)	1 ~ 26 Hz  (adaptive to altitude)
Sensor assist	Integrated AHRS/IMU (Yost Labs TSS-NANO)	Integrated AHRS/IMU (Yost Labs TSS-NANO)
Min altitude	5 cm	5 cm
Max altitude	50 meters (Performance at altitudes > 35 meter is dependent on seabed conditions, salinity levels etc.)	125 meters (Performance at altitudes > 110 meter is dependent on seabed conditions, salinity levels etc.)
Max velocity	3.75 m/s	9 m/s
Velocity resolution	0.1 mm/s	0.1 mm/s
Long term accuracy	±1.01 % (Standard version) ±0.1 % (Performance version)	±1.01 % (Standard version) ±0.1 % (Performance version)

Pictures and 2D-Drawing

A50

A125