The Ex20 extension enables the expansion different gateways like the Elara, Techbase, and Axiomtek.

With the Ex20 connected to the gateway tray/metal box, a greater quantity of analog and digital sensors may be connected to the gateway.

Features

Hardware Specifications

Power Supply	9 - 30 V
Power Consumption	Full power mode	0.12 W average (Aprox.) @12v aprox. 10mA
General purpose inputs	12 Analog inputs (0-5v / 0-15v available – Model specific) 8 digital inputs (Model specific)
Outputs	Open collector output (Model specific) SSR dry contacts (Model specific)
Serial Communication	RS485 (Main) / Modbus host RS232 (Model specific) CAN (Model specific) RS485 (Secondary – Model specific)
Storage Temperature	-40 - 85 Celsius
Working Temperature	-20 - 70 Celsius
Max. Relative humidity	90%
Weight	80g (Aprox.)

Output specifications

Output Type	Open Collector
Max. Continuous working current	200 mA
Over Current protection	300 mA (Aprox.)
Maximum working voltage	40 V

General-purpose analog inputs specifications

Negative digital inputs specifications

Low level threshold (Active)	1 V
High Level threshold	1.4V

Mechanical Dimensions

Active state	Blinking pattern description	Pattern
Host Connected	Green, Fast blink (for a period of 10 Sec after each message from host)
Gateway mode: No host, but data received at the RS232 port	Red, Fast blink (for a period of 10 Sec after each message from host)
Idle State (No communication)	Red, short blink and long pause.
Idle State (No Communication), Error condition	Red, (X>1) Short blinks and long pause. Contact Galooli for detailed description on detection of fault state

0-5V	0-5V	0-5V	0-5V	0-15V	0-15V	0-15V	0-15V	0-15V	0-15V	0-15V	0-15V
GND	PWRIN	RS485-A	RS485-B	DIG1	DIG2	DIG3	DIG4	RS232-TX	RS232-RX	DIG7	OUT

Pin#	Name