RBMTX-Viper Connectors

This page contains connectors description of RBMTX-Viper router.

Power supply connector

Please use power adapter which is included in package. It ensures “clean” power supply input and avoids short transients on power supply lines originating from inductive load switching. The power supply connector is a 2-pin connector for external DC power supply. Power supply range of RBMTX-Viper is 9..30 V DC.

Pin	Name	Direction	Description
+	V+	IN	9..30 V DC
-	GND	-	Ground

NOTE: The device is switched off by removing the external power supply from the electric socket. The electric socket must be located close to the device and easily accessible.

Main SIM card holder

External, main SIM card holder is placed at the front of the RBMTX-Viper router (as shown below). To insert a SIM card into the holder, press the yellow button, eject the black drawer, place the SIM card inside it and insert drawer into the modem (you will hear "click"). To operate the module in a GSM/LTE network, it is necessary to insert active SIM card from the network provider.

Second SIM card holder (SIM2) in RBMTX-Viper is placed above the main SIM holder (SIM1).

NOTE: To manage SIM cards of the router check RBMTX-Viper Interfaces and RBMTX-Viper Watchcat

Antenna connectors

GSM antenna connector

SMA antenna connector placed on back panel is used to connect external GSM/UMTS/LTE. It must be connected to establish a connection with GSM/UMTS/LTE network. When signal strength is poor please use outdoor directional/omnidirectional or indoor antenna.

Note: If the antenna is not connected, connection with GSM/UMTS/LTE network will be impossible. Note: Make sure you don't tighten the antenna too much. The torque setting of SMA connector is 0.15 – 0.20 NM.

WiFi antenna connector

Router is equipped with WiFi SMA male connector placed on front panel and it is used to connect external WiFi antenna.

Note: If the antenna is not connected, connection with WiFi network will be impossible.
Note: Make sure you don't tighten the antenna too much. The torque setting of SMA connector is 0.15 – 0.20 NM.

GPS/GNSS antenna connector

An SMA "GNSS" input is used to connect an external GNSS antenna. To establish connection with GPS/GNSS sattelites and check the coordinates of the device, an external antenna must be used and should be located outdoors.

LTE diversity antenna connector

An SMA "DIV" input is used to connect an external diversity antenna to improve reception.

Interfaces

Router serial port: RS485

Serial RS485 (3-pin connector marked as "RS485") is placed on back panel of router. Serial connector pinout is described in a table below:

Pin no.	RS485 signal
1	GND
2	A
3	B

Ethernet ports

RBMTX-Viper has four Gigabit Ethernet ports (1 x WAN and 3 x LAN). The WAN interface is used to connect the router with external networks and the LAN interfaces are used to connect local networks. The WWW configuration is available in the web browser (default IP address is 192.168.1.234). You can change the default address as described in RBMTX-Viper_Interfaces.

GPIO

GPIO connector pinout is described in a table below:

Pin no.	GPIO	Description
1	IN1	Isolated input
2	IN1 GND
3	IN2	Dry contact
4	IN3	Digital input 30V
5	AIN	Analog input
6	GND	Ground
7	OUT1	Open drain output
8	OUT2	Open drain output
9	OUT3	Relay output
10	OUT3 GND