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User Manual for BKV Series Communication Tools with USB Cable

1. About BKV Series USB Communication Tools

REDZ BKV series are cable-connected communication tools for local applications. All devices has USB Type A or USB Type C connections for local devices such as PCs. It has several options: USB to RS232 Converter or USB to RS485 Converter with built-in isolated 5V Power Output to easily connect field devices such as KMK114, USB 2.0 - 4 Port USB Type A Hub to extend USB connectivity for multiple USB devices like KMK116 series, USB to 2 Port Ethernet switch to connect field devices easier such as STG-LKM-CKL... series, USB to 868MHZ Wireless MBus Converter to get WMBus messages from the local device directly, USB to P1 Companion Protocol Meter Interface Converter to get Electricity meters data directly to local device.

2. Hardware Features

All BKV Series devices have either USB Type A or Type C connection to local device such as PC.

2.1 Features – USB to RS485 Converter With 5V Isolated Power Output

Converts USB to RS485
Terminal Connector for 2 wire RS485 connection and GND
ESD Protection for RS485 I/O Pins
±15kV—Human Body Model
±15kV—IEC61000-4-2, Air-Gap Discharge
±8kV—IEC61000-4-2, Contact Discharge
Allows up to 256 Transceivers on the Bus
With Thermal Shutdown Feature
With Current-Limiting for Driver Overload Protection
Allows up to 500kbps error-free data transmission
USB Type A or Type C Cable, 3m Length
5V/200mA Isolated Power Output With Reverse Polarity Protection

2.2 Features – 4 Port USB 2.0 Hub

4 Port USB 2.0 Hub
All Ports are USB Type A Female
Fully compliant with Universal Serial Bus Specification Revision 2.0 (USB 2.0)
Compliant with Universal Charging Solution, and USB Battery Charging Specification 1.1/1.2
USB Type A or Type C Cable, 3m Length

2.3 Features – USB 2.0 to 2 Port Ethernet Switch

USB 2.0 to 2 Port Ethernet Switch
Supports 2 x 10/100Base-T(X) ports
Supports Full/Half-Duplex, auto MDI/MDI-X on each port
Fully compliant with Hi-Speed Universal Serial Bus Specification Revision 2.0
Supports HS (480 Mbps) and FS (12 Mbps) modes
USB Type A or Type C Cable, 3m Length

2.4 Features – USB to P1 Companion Protocol Meter Interface Converter

Converts USB to P1 Companion Meter Protocol
Terminal Connector for 3 wire P1 connection ( Data, Data Request, GND) on Meter Side
ESD Protection on P1 Interface
2000 V Human-Body Model (A114-B, Class II)
200 V Machine Model (A115-A)
1000 V Charged-Device Model (C101)
RJ12 cable connection to meter must be prepared for meter connection based on desired length.
USB Type A or Type C Cable, 3m Length

2.5 Features – USB to 868MHz WMBus (Wireless MBus) Converter

USB 2.0 to WMBus (Wireless MBus) Converter
Listen WMBus Messages from PC ( or send WMBus Messages from PC)
868MHz Wireless MBus (WMBus) Radio Frequency (RF) Communication
Output Power Level: Configurable (-1 dBm to 13 dBm)
Link Budget: Up to 130 dB
Communication Distance: Up to 3km (Line of Sight)
Typical Communication Distance Indoor/Urban: >100m
Link Modes: Configurable (S - Mode, T - Mode, C - Mode, C/T - Mode together)
Supported CI Values: 53h, 5Bh, 60h, 6Ch, 6Dh, 6Eh, 6Fh, 72h, 74h ,75h, 78h, 7Ah, 7Ch, 7Dh, 80h, 8Ah, 8Bh, 8Ch, 8Dh, 8Eh, 8Fh, C3h, C4h, C5h
Decryption: AES Decryption of Received Frames for up to 128 Devices (Mode 5, Mode 7, Mode 128 and custom modes)
Unlimited Numbers of WMbus device data can be listened over air and WMBus frames can be sent to USB software
USB Type A or Type C Cable, 3m Length

3. Installation

BKV Series USB Communication Tools have very small form factor. Thus, it can be acted as just cable and there is no need for special mounting. Simply connect the USB Type A or Type C cable to PC and latets windows Systems will install driver automatically.

If driver installation fails, user may download driver from following link manually:

BKV USB 2.0 to 2 Port Ethernet Switch Model Drivers

Other Models Drivers can be found on this page:

https://probeformeters.com/en/driver

4. Panel Descriptions and Pin Mappings

4.1 Local Device Side: BKV111 & BKV114 & BKV214 & BKV312 & BKV416 & BKV511

USB Type A Cable connection, 3m cable

4.2 Local Device Side: BKV121 & BKV124 & BKV224 & BKV322 & BKV426 & BKV521

USB Type C Cable connection, 3m cable

4.3 RS232 Converter With 5V Isolated Power Output: BKV111 & BKV121

Terminal Connector for 3 wire RS232 Connection and 5V Isolated Power Output

Pin Number	Description
1	Tx
2	Rx
3	GND
4	Isolated Output Power -
5	Isolated Output Power + (5VDC)

Following LEDs are available to show the device status

LED	Description
PWR	Turns ON if the device is powered properly
Rx	Rx and Tx LEDs turn ON during data transfer according to data activity
Tx	Rx and Tx LEDs turn ON during data transfer according to data activity

4.4 Connector Side: BKV114 & BKV124

Terminal Connector for 3 wire RS485 Connection and 5V Isolated Power Output

Pin Number	Description
1	B
2	A
3	GND (Optional)
4	Isolated Output Power -
5	Isolated Output Power + (5VDC)

Following LEDs are available to show the device status

LED	Description
PWR	Turns ON if the device is powered properly
Rx	Rx and Tx LEDs turn ON during data transfer according to data activity
Tx	Rx and Tx LEDs turn ON during data transfer according to data activity

4.5 4 Port USB 2.0 Hub: BKV214 & BKV224

4 port USB2.0 USB Type A Female Inputs

Port Number	Description
1	USB Hub - Port 1, USB TYpe A Female
2	USB Hub - Port 2, USB TYpe A Female
3	USB Hub - Port 3, USB TYpe A Female
4	USB Hub - Port 4, USB TYpe A Female

Following LEDs are available to show the device status

LED	Description
PWR	Turns ON if the device is powered properly
USB-1	Turns ON if port 1 is used
USB-2	Turns ON if port 2 is used
USB-3	Turns ON if port 3 is used
USB-4	Turns ON if port 4 is used

4.6 USB 2.0 to 2 Port Ethernet Switch: BKV312 & BKV322

2 ports 10/100 Ethernet with Full-Duplex Support

Port Number	Description
1	Ethernet Switch Port 1
2	Ethernet Switch Port 2

Following LEDs are available to show the device status

LED	Description
PC	Turns ON when device is connected via USB cable and powered up
ETH-1	Turns ON if port 1 is used and there is data activity
ETH-2	Turns ON if port 2 is used and there is data activity
FDUPLEX	Ethernet link is Full Duplex when LED is ON and half duplex when LED is OFF
SPEED	Ethernet link 100Mbps when LED is ON and 10Mbps when LED is OFF

4.7 USB to P1 Companion Protocol Meter Interface Converter: BKV416 & BKV426

Terminal Connector for 3 wire P1 Companion Protocol Standard Interface

Pin Number	Description
1	CTRL (Data Request)
2	Rx (Data)
3	GND
4	NC: Not Connected
5	NC: Not Connected

User should arrange RJ12 cable needed to connect to meter in desired length.

Pin Number	Description
1	+5V Power Supply: NOT USED
2	Data Request (CTRL)
3	Data GND
4	Not connected (NC)
5	Data (Rx)
6	Power GND: NOT USED

Following LEDs are available to show the device status

LED	Description
PWR	Turns ON if the device is powered properly
Rx	Rx and Tx LEDs turn ON during data transfer according to data activity
Tx	Rx and Tx LEDs turn ON during data transfer according to data activity

4.8 USB 2.0 to 868MHz WMBus (Wireless MBus) Converter: BKV511 & BKV521

868MHz WMBus (Wireless MBus) Antenna Connector
1 Standard SMA female Antenna interface, 50 ohm

Following LEDs are available to show the device status

LED	Description
PC-Rx	Turns ON and OFF based on data transmission on USB connection side
PC-Tx	Turns ON and OFF based on data transmission on USB connection side
Status	Blinks during normal operation
RF-Rx	Turns ON and OFF based on data transmission on WMBus side
RF-Tx	Turns ON and OFF based on data transmission on WMBus side

5. Usage Scenarios and Connection Diagrams

BKV Series USB Communication Tools can be used in different scenarios. Usages are not limited to that examples and user may create their own usage scenario.

5.1 USB to RS232 Converter With Isolated Power Output

BKV Series USB to RS232 Converter with built-in isolated 5V Power Output helps users to easily connect field devices such as KMK111. It has USB Type A and Type C connection options on local field device side (such as PC).

5.2 USB to RS485 Converter With Isolated Power Output

BKV Series USB to RS485 Converter with built-in isolated 5V Power Output helps users to easily connect field devices such as KMK114. It has USB Type A and Type C connection options on local field device side (such as PC).

5.3 4 Port USB 2.0 Hub

BKV Series USB 2.0 - 4 Port USB Type A Hub helps users to easily extend USB connectivity for multiple USB devices like KMK116 series.

5.4 USB 2.0 to 2 Port Ethernet Switch

BKV Series USB to 2 Port Ethernet switch helps users to easily connect field devices such as STG-LKM-CKL... series.

5.5 USB to P1 Companion Protocol Meter Interface Converter

BKV Series USB to P1 Companion Protocol Meter Interface Converter helps users to easily get P1 Electricity meters data directly to local device such as PC.

5.6 USB to 868MHz WMBus (Wireless MBus) Converter

BKV Series USB to 868MHZ Wireless MBus Converter helps users to easily get WMBus messages from local WMBus devices directly to local PC.

6. Operating Instructions

BKV Series USB Communication Tools are easy to operate. Simply connect the USB Type A or Type C cable to PC and latest windows Systems will install driver automatically.

If driver installation fails, user may download driver from following link manually:

BKV USB 2.0 to 2 Port Ethernet Switch Model Drivers

Other Models Drivers can be found on this page:

https://probeformeters.com/en/driver

6.1 USB to RS232 Converter With Isolated Power Output

Connect Cable side to field USB device such as PC and complete installation of driver
Connect RS232 Side to field RS232 device such as KMK111
If needed, connect the power output to field RS232 Device. In our example It is KMK111 and it gets power from Pin 4 ( and GND on pin 5)
Use application to interact with RS232 device such as ZR software for KMK111 optical probe

Here is a video example for reading energy meter with KMK111 RS232 optical probe:

6.2 USB to RS485 Converter With Isolated Power Output

Connect Cable side to field USB device such as PC and complete installation of driver
Connect RS485 Side to field RS485 device such as KMK114
If needed, connect the power output to field RS485 Device. In our example It is KMK114 and it gets power from Power + cable ( and GND from Power - cable)
Use application to interact with RS485 device such as ZR software for KMK114 optical probe

Here is a video example for reading energy meter with KMK114 RS485 optical probe:

6.3 4 Port USB 2.0 Hub With

Connect Cable side to field USB device such as PC and complete installation of driver
Connect USB sides to field USB device such as KMK116
Use application to interact with USB devices such as ZR software for KMK116 optical probe

Here is a video example for reading 4 energy meters with KMK116 USB optical probes:

6.4 USB 2.0 to 2 Port Ethernet Switch

Connect Cable side to field USB device such as PC and complete installation of driver
Connect Ethernet sides to field Ethernet devices such as LAN Switch and CKL Series directly
Use web interface to access devices in field such as CKL directly and other REDZ models such as STG, LKM... over LAN.

Here is a video example for connecting web interface of CKL series over LAN:

6.5 USB to P1 Companion Protocol Meter Interface Converter

Connect Cable side to field USB device such as PC and complete installation of driver
Connect P1 Side to field P1 Electricity Meter via P1 Interface
Arrange RJ12 cable needed to connect to meter in desired length for connection

Pin Number Description

1
+5V Power Supply: NOT USED

2
Data Request (CTRL)

3 Data GND

4 Not connected (NC)

5 Data (Rx)

6 Power GND: NOT USED
Use application to listen data from P1 Companion Standard Meter such as RealTerm terminal software.

Here is a video example for reading an energy meter in P1 Companion Standard:

6.6 USB to 868MHz WMBus (Wireless MBus) Converter

Connect Cable side to field USB device such as PC and complete installation of driver
Use application to listen field 868MHZ WMBus devices or send WMBus packets over air.
Here is link for latest Z Terminal Software which can be used to configure and monitor this device: WMBus Software

Supported Link modes are:

	Frequency	Coding	Chiprate	Bitrate	Frame Format
S - Mode	868.30 MHz	Manchester	32786 cps	16384 bps	A
T - Mode (Rx) (Meter to Other)	868.95 MHz	3-Out-Of-6	10000 cps	66666 bps	A
T - Mode (Tx) ( Other to Meter)	868.30 MHz	Manchester	32768 cps	16394 bps	A
C - Mode (Rx) (Meter to Other)	868.95 MHz	NRZ	100000 cps	100000 bps	A, B
C - Mode (Tx) ( Other to Meter)	869.525 MHz	NRZ	50000 cps	50000 bps	A, B
C/T - Mode (Rx) (Meter to Other)	868.95 MHz	NRZ 3-Out-Of-6	10000 cps 10000 cps	10000 bps 66666 bps	A, B A

Supported CI Values are:

CI-Field	Function / Layer	Up- or Down-link	TPL header - Type	Protocol / Service
53h	Application Reset or Select	Down	Long	Application Reset or Select
5Bh	Command	Down	Long	M-Bus
60h	Command	Down	Long	DLMS
6Ch	Time Sync	Down	Long	Generic
6Dh	Time Sync	Down	Long	Generic
6Eh	Application Error	Up	Short	Generic
6Fh	Application Error	Up	Long	Generic
72h	Response	Up	Long	M-Bus
74h	Alarm	Up	Short	Generic
75h	Alarm	Up	Long	Generic
78h	Response	Up	None	M-Bus
7Ah	Response	Up	Short	M-Bus
7Ch	Response	Up	Long	DLMS
7Dh	Response	Up	Short	DLMS
80h	Pure Transport Layer	Down	Long	None
8Ah	Pure Transport Layer	Up	Short	None
8Bh	Pure Transport Layer	Up	Long	None
8Ch	Extended Link Layer	Up / Down	Short	Lower Layer Service ( 2 Byte )
8Dh	Extended Link Layer	Up / Down	Long	Lower Layer Service ( 8 Byte )
8Eh	Extended Link Layer	Up / Down	Long	Lower Layer Service ( 10 Byte )
8Fh	Extended Link Layer	Up / Down	Long	Lower Layer Service ( 16 Byte )
C3h	Command	Down	Long	Security Information Transport
C4h	Response	Up	Short	Security Information Transport
C5h	Response	Up	Long	Security Information Transport

Packet Decryption and Encryption Support List is:

Mode	Encryption Type	Authentication	Supported
0	None	None	YES
2	DES CBC	None	NO
3	DES CBC	None	NO
5	AES-128 CBC	None, MIC	YES
7	AES-128 CBC, dynamic key	CMAC	YES
8	AES-128 CTR	CMAC	NO
9	AES-128 GCM	GCM/GMAC	NO
10	AES-128 CCM	CCM	NO
128	ELL AES-128 CTR	None, CRC	YES
129	Custom Modes	None	e.g. AT-WMBUS-NA-1

In order to operate Z Terminal software simply click its icon. Then please select COM Port of the device and select device type "BKV WMBus".

Device will communicate in 115200 baud and 8N1 data format.

Click connect when all settings are done and go to "BKV WMBus" tab.

Click "READ BKV WMBUS" button to read

Device Info: Device module model and serial number
Date and Time: Device date and time
User can also click "Set Time" button to set device time based on PC time (automatic setting of device with PC time, no input of time is required)
Firmware Info: Device module firmware info
Device Configuration: Selected WMBus packet reception mode and info regarding if filter is enabled
User can also set Reception mode for one of following options: OFF, S-Mode, T-Mode, C/T Mode
User can also activate Packet filter based on previously saved "WMBus Device List". User must save device list before enabling the filter.
WMBus Device List: Devices saved to memory of device (this list also updates when WMBus packet received over air)
Up to 128 devices can be saved. If list is longer than 128, then only first 128 devices will be saved.

If there is a WMBus message received over air, the packet will be shown on "Lates Received WMBus Package" part and "WMBus Device List" will be updated:

This part also shows info regarding received packet. And also the terminal will show basic details of received WMBus packet:

If device is not in list, it will be added to list
If device is already in list, the montoring parameters ( Latest packet RSSI value and Latest Packet Receive Date and Time) will be updated and Number of received packets will be advanced
If user reads "WMBus Device List" from device itself then if this packet already saved in device, the AES Key part will be updated baesd on saved value

In order to send a WMBUs package, go to "Data" tab

Enter Data as full WMBus frame in one of data windows. Data must be in Hex format and must contain at least 1 "0x" sign
Select "Mode". Z Terminal can send a single packet or can send packet periodic, if periodic selected, select the period in ms.
Select "WMBus Tx Options"
Tx Mode can be one of following: S - Mode, Packet Format, T - Mode, Packet Format A, C - Mode, 50.000 bps, Format A, C - Mode, 100.000 bps, Format A, C - Mode, 50.000 bps, Format B, C - Mode, 100.000 bps, Format B
Tx Power Level can be between - 1 dBm to +13 dBm.
Click "Send" button once all settings are done. Device will send data and show status in terminal
Button name will change to "STOP" if "Periodic" is selected, in this case user can stop data by clicking the button again.

Here is a video example for listening Wireless MBus frames over air with ZTerminal application:

7. Ordering Information

BKV111: USB to RS232 Converter With USB Type A Cable and 5V Isolated Power Output

BKV114: USB to RS485 Converter With USB Type A Cable and 5V Isolated Power Output

BKV121: USB to RS232 Converter With USB Type C Cable and 5V Isolated Power Output

BKV124: USB to RS485 Converter With USB Type C Cable and 5V Isolated Power Output

BKV214: 4 Port USB 2.0 Type A Hub With USB Type A Cable

BKV224: 4 Port USB 2.0 Type A Hub With USB Type C Cable

BKV312: USB to 2 Port Ethernet Switch With USB Type A Cable

BKV322: USB to 2 Port Ethernet Switch With USB Type C Cable

BKV416: USB to P1 Companion Protocol Meter Interface Converter With USB Type A Cable

BKV426: USB to P1 Companion Protocol Meter Interface Converter With USB Type C Cable

BKV511: USB to 868MHz WMBus (Wireless MBus) Converter With USB Type A Cable

BKV521: USB to 868MHz WMBus (Wireless MBus) Converter With USB Type C Cable

8. Product Selection

Model	USB Type A Cable for PC Connection	USB Type C Cable for PC Connection	RS485 Connection and 5V Isolated Power Output	RS232 Connection and 5V Isolated Power Output	4 Port USB 2.0 Type A Hub	2 x 10/100 T(x) ETH ports	P1 Companion Meter Interface	868MHz Wiress MBus (WMBus)
BKV111	X			X
BKV114	X		X
BKV121		X		X
BKV124		X	X
BKV214	X				X
BKV224		X			X
BKV312	X					X
BKV322		X				X
BKV416	X						X
BKV426		X					X
BKV511	X							X
BKV521		X						X