Monitoring & Control Startkit

Allows remote Monitoring & Control of your converter. See description below for more information and installation Quick Guide.

• Complete hardware kit to connect a PC to LNB or BDC
• For setup and reading of Alarms for troubleshooting
• Redundancy switching, incl first input stage (LNA) current monitoring
• Functions such as Band (LO) switching, LNB conversion gain control
• Easy monitoring of parameters like RF output power, Voltage, Current
• Standard Fieldbus RS 485 electrical and MODBUS RTU interface



Startkit contains a USB to RS485 transceiver and a 2 meter M8 cable (indoor purposes only) for connection between the transceiver and the LNB or BDC. After connecting the USB to RS485 transceiver to a host (PC) and the M8 cable to a LNB/BDC you will be able to monitor and control the LNB/BDC. In the technical specifications you can see what parameters that can be Read (R) / Write(W) from the included registers. Software or driver is not included. For more information please contact us.

Connection cable M8 20 meter (male-to-male – part no 799160-20) for outdoor use is sold separate on request.
Connection cable M8 10 meter (male-to-pigtail – part no 799160-10) for outdoor use is sold separate on request.
Connection accessorie M8 splitter (2x female 1x male part no 596132) is sold separate on request.
Outdoor cable

Accessorie outdoor cable 20m


Accessorie splitter

Product sheet

SMW M&C Modbus start kit rev 10-21-5D_edit

Installation Quick Guide

In addition to this hardware kit, you need a MODBUS software or driver, often already available in a SCADA system.

1. Install software or driver on the host (PC). For example QModMaster or Easyview.

2. Connect the USB to RS485 transceiver and pay attention to which USB/COM port the device get. Connect to first end of the 2 meter M8 cable to the transceiver cable. Connect the other end of the 2 meter M8 cable to the LNB or BDC. Be aware that the M8 connectors are “keyed” for rotation by the assymetric pin placement. 

3. Power up the LNB/BDC and start the software on the PC. Make sure that the software uses correct USB/Com port for the connection to the LNB/ BDC. 

4. Make necessary settings in the software and read or write to the unit according to the Alarm Wiring Guide diagram in the product sheet. Please note! Standard client ID is “60”.

More information about the Modbus standard can be found at 

Technical specifications

 Input Register (R) 

Alarm reading, Persistant Alarm, Days of operation, IF output power, Temperatur (C or F), Current monitor, Input voltage, Laser power (if optical output), LNA current, Unit gain offset, Unit Serial number, Unit Software version. 

Discrete Inputs (R) 

Sum Alarm Activated or not, Active LO ref (Int/Ext), External LO ref. detected, External LO ref. locked, TTL input value, LO locked, 22 kHz detect 

Coils (R/W) 

Alarm pin output config, Temperature unit (Celcius or Fahrenheit), Legacy control mode (22 kHz or Modbus band switching), GPO output, GPO Mode 1, Persistant alarm reset 

Holding Register (R/W) 

Slave adress 1-247 (default 60), Alarm trigger settings, Band Select via Modbus, Unit gain offset, MODBUS EUSART Parity Mode (default is Even), Baud Rate selection (default is 19,2 kbps, 8 bits, 1 stop bit, Even) 

Alarm register 

LO locked, Ext LO ref. locked, Ext LO ref. detected, LNA failure, Output RF power low, Output power high (saturation), Total current high 

Temperature range 

Operating: – 40° to + 80° C 

Alarm interface 

Interface: Separate M8-connector (B), Open collector, Open on fault, 3.3 to 24 V, max. 200 mA 

Monitoring & Control 

Via MODBUS RTU RS485 electrical interface, see sep. document for details. NOTE! Mates with M8 male connector/Cable, use only shielded CAT.5 cables