Electrical specifications

All electrical maximum ratings, characteristics, connector pin-out and specifications.

Overview

Input Power Supply Voltage
Current Drawn @ +3.3V, +5V, +12V, +28V
Power
Compliance
- MIL-STD-1275

PCB Footprint (OEM Procts only)

Figure : PCB Footprint
- Recommended dimensions and tolerances of mounting holes
- Hole to Hole dimensions
- Hole to Connector dimensions

Interfaces Specifications

Connector : MAIN

Figure : I/O Connector Pinout relative to footprint
- Notch/Index reference
- Mounting holes, top view
- Pin arrangement/numbering : Pin 1, Pin N/2-1, Pin N/2, Pin N, top view

Board Connection Overview

Figure : Assembly 3D view
- Fasteners
- Mating connectors or cables
Connectors Specifications
- Connector Overview
  - Identification
- Connector Environmental & Mechanical Specifications
  - Table :
    - Characteristic Performance & Standard
    - Sealing performance (Mated & unmated)
    - Sealing performance soft caps
    - Operating Temperature Range
    - Corrosion Resistance Salt mist
    - Endurance mating cycles
    - Vibration, random
    - Shock
    - Characteristic Performance Standard
    - Shell Resistance
    - Insulation Resistance
    - Shielding Effectiveness
  - Connector Keying
    - Table : Connector Keying
      - Connector
      - Key Code
      - Key Pattern

Pin out table

Contact #	Signal Name	Type	Description	Connection Tips
1	VDD	Power Input	Main Power Supply Input	Both VCC pins (Pin#1 and Pin#2) must be tied together.
2	VDD	Power Input	Main Power Supply Input	Both VCC pins (Pin#1 and Pin#2) must be tied together.
3	GND	Ground	Signal Voltage Reference	All ground pins must be connected.
4	GND	Ground	Signal Voltage Reference	All ground pins must be connected.
5	ETHERNET_PORT_RX+	Ethernet Input	Ethernet Port Receive Signal (+ differential)	Leave unconnected if not used. See section __ otherwise.
6	ETHERNET_PORT_TX+	Ethernet Output	Ethernet Port Transmit Signal (+ differential)	Leave unconnected if not used. See section __ otherwise.
7	ETHERNET_PORT_RX-	Ethernet Input	Ethernet Port Receive Signal (- differential)	Leave unconnected if not used. See section __ otherwise.
8	ETHERNET_PORT_TX-	Ethernet Output	Ethernet Port Transmit Signal (- differential)	Leave unconnected if not used. See section __ otherwise.
9	GND	Ground	Signal Voltage Reference	All ground pins must be connected.
10	GND	Ground	Signal Voltage Reference	All ground pins must be connected.
11	INS_LED_A	LVTTL Output	INS Led Output A	Leave unconnected if not used.
12	GNSS_LED_A	LVTTL Output	GNSS Led Output A	Leave unconnected if not used.
13	INS_LED_B	LVTTL Output	INS Led Output B	Leave unconnected if not used.
14	GNSS_LED_B	LVTTL Output	GNSS Led Output B	Leave unconnected if not used.
15	GND	Ground	Signal Voltage Reference	All ground pins must be connected.
16	GND	Ground	Signal Voltage Reference	All ground pins must be connected.
17	CAN_TX	LVTTL Output	CAN Transmit	Leave unconnected if not used.
18	PORTA_TX	LVTTL Output	PORTA UART Transmit	Leave unconnected if not used.
19	CAN_RX	LVTTL Input	CAN Receive	Leave unconnected if not used.
20	PORTA_RX	LVTTL Input	PORTA UART Receive	Tie to GND if not used.
21	GND	Ground	Signal Voltage Reference	All ground pins must be connected.
22		LVTTL Input	Synchronisation Input A	Leave unconnected if not used.
23		LVTTL Output	Synchronisation Output B	Leave unconnected if not used.
24		LVTTL Output	Synchronisation Output A	Leave unconnected if not used.
25	PORTC_TX	LVTTL Output	PORTC UART Transmit	Leave unconnected if not used.
26	PORTB_TX	LVTTL Output	PORTB UART Transmit	Leave unconnected if not used.
27	PORTC_RX	LVTTL Input	PORTC UART Receive	Tie to GND if not used.
28	PORTB_RX	LVTTL Input	PORTB UART Receive	Tie to GND if not used.
29		LVTTL Input	Synchronisation Input C	Leave unconnected if not used.
30		LVTTL Input	Synchronisation Input B	Leave unconnected if not used.
31	GND	Ground	Signal Voltage Reference	All ground pins must be connected.
32	GND	Ground	Signal Voltage Reference	All ground pins must be connected.
33	-	-	Reserved	Leave unconnected
34	-	-	Reserved	Leave unconnected
35	-	-	Reserved	Leave unconnected
36	ODO_A	LVTTL Input	Odometer A Channel	Tie to GND if not used.
37		LVTTL Input	PORTD Synchronisation Input	Leave unconnected if not used.
38	ODO_B	LVTTL Input	Odometer B Channel	Leave unconnected if not used.
39	GND	Ground	Signal Voltage Reference	All ground pins must be connected.
40	GND	Ground	Signal Voltage Reference	All ground pins must be connected.

Electrical Absolute Maximum Rating

Absolute Maximum Rating for BOX Products

Item	Rating	Unit
VCC to VSS	± 36	V
VSS to GND		V
VSS to MAIN_SGND		V
VSS to AUX_SGND		V
Digital Input Voltage to Signal Reference ( GND, MAIN_SGND, AUX_SGND ... )		V
Digital Ouput Voltage to Signal Reference ( GND, MAIN_SGND, AUX_SGND ... )		V
Rx+, Rx-, Logic inputs pins input voltage to signal GND	± 18	V
Logic output Max current	50	mA
CANH, CANL	± 80	V
ESD protection (Tx, Rx, Input & Output pins, CANH, CANL)	± 15	kV

Absolute Maximum Rating for OEM Products

Item	Rating	Unit
All pins to signal GND	-0.3 to 5.5 V	V
All input pins clamp current	-50	mA
All output pins clamp current	50	mA
VDD, EN ESD Rating - Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001	±1500	V
VDD, EN ESD Rating - Charged-device model (CDM), per JEDEC specification JESD22- C101	±500	V
VDD_IO & All other IO pins ESD Rating - Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001	±8000	V
VDD_IO & All other IO pins ESD Rating - Charged-device model (CDM), per JEDEC specification JESD22- C101	±1000	V
RESERVED pins - Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001	±1000	V
RESERVED pins - Charged-device model (CDM), per ANSI/ESDA/JEDEC JS- 002	±250	V

Precaution about ESD

Refer to : Handling Section

Power Supply Specifications

Recommended Operation

Item	Condition	Min.	Typ.	Max	Unit
Input Voltage Range	-	4.5	5	5.5	V
Typical Power Consumption	Over full Input Voltage Range with/without GNSS Antennas				W
Current Consumption	VCC - VSS = +5V				mA
Voltage Spike Protection Energy
Voltage Surge Protection
Reverse Voltage Protection

I/O Interface Specification

Refer to Mechanical Specifications for more details about onboard and mating connectors

Item	Condition	Min.	Typ.	Max	Unit
LVTT Inputs pins Input Capacitance pF
Low level input voltage		-	-	0.8	V
High level input voltage		2	-	-	V
Input current		- 20	-	- 40	µA
LVTTL Outputs pins
Low level output voltage		-	00	04	V
High level output voltage		28	33	-	V
Max output current		0	-	20	mA
Sync Out pins Input low level voltage Input high level voltage Weak pull-up equivalent resistor Output low voltage Output high voltage Output drive current Output high to low fall time Output low to high rise time Output Frequency
High Level Output voltage	ILoad < 100μA		3.2		V
High Level Output voltage	ILoad < 16mA		2.6		V
Low Level Output voltage	ILoad < 100μA		0.1		V
Low Level Output voltage	ILoad < 16mA		0.4		V
RS232 Inputs, Sync In pins Input low level voltage Input high level voltage Weak pull-up equivalent resistor Output low voltage Output high voltage Output drive current Output high to low fall time Output low to high rise time Output Frequency Input Capacitance 2 pF
Input range		-15	-	+15	V
Low level threshold		0.6	-	-	V
High level threshold			-	2.0	V
Input resistance		3	5	7	kΩ
RS232 Outputs pins
Output range		+/-5	+/-5.5	-	V
RS-422 Input pins Parameter Condition Min Nominal Max Unit Receiver Input Resistance 96 125 k Ω Receiver Termination Resistance Enabled Receiver Input Current (Rx- to Rx+) Receiver Differential Input Threshold Voltage (RX- minus RX+) Receiver Input Failsafe Hysteresis Receiver Input Failsafe Threshold Input Capacitance 2 pF
Input differential threshold -200 -125 -50 mV
Input hysteresis 25 mV
Input resistance		96	-	-	kΩ
RS-422 Outputs pins Differential Driver Output Voltage Difference in Magnitude of Driver Differential Output Voltage for Complementary Output States Driver Common Mode Output Voltage Difference in Magnitude of Driver Common Mode Output Voltage for Complementary Output States Maximum Driver Short-Circuit Current
Differential output voltage		2	-	-	V
Common mode output voltage		-	-	3	V
CAN bus
Recessive Bus Voltage		2	2.5	3	V
CAN H Output Voltage dominant		2.75	3.5	4.5	V
CAN L Output Voltage dominant		0.5	1.25	2.2	V
Absolute input voltage CANH, CANL		-58		58	V
Differential input voltage CANH, CANL		0.5	0.7	0.9	V

Table : Timing Specifications ( recommended operation )

Isolation

- Parameter Condition Min Nominal Max Unit
- Isolation Voltage
- Working Isolation Voltage
  - Power ground relative to Signal ground
  - Signal ground relative to Signal ground

GNSS Antenna Interface Specifications

GNSS Antenna Port Electrical Specifications

Parameters	Conditions	Min.	Typ.	Max.	Units
Output Voltage (No load)		4.8	5	5.2	V
Output Current	When 2x GNSS antennas are connected	-	-	125	mA
Current-limit switch Full-load limit		-	-	130	mA
No-load Current limit		1	-	5	mA
Short-circuit current limit response time		-	-	10	µs
Maximum RF Power Input		-	-	10	dBm
ESD Circuit protection	-	-15	-	15	kV

GNSS Antenna Requirements

Parameters	Requirements
Type	Active, featuring embedded LNA ( Low Noise Amplificator )
Minimum Gain	17 dB
Maximum Gain	50 dB
Maximum Noise Figure	4 dB
Group delay variation in-band	10 ns max at each GNSS system bandwidth. Note : Inter-signal requirement 50 ns max.
Out-of-band rejection	40 dB typ
Axial ratio	2 dB
Phase center variation	<10 mm over elevation/azimuth
EMI immunity out-of-band	< 30 V/m

Figure ( Gliffy Diagram : Product_GNSS_Connectors_Identification ) : picture of the label showing
- Product
- GNSS RF Connectors
- Naming of GNSS RF Connectors

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