OP-SB89E LAN (2ch) Expansion Board (supporting EtherCAT)

Applicable Analyzer: LE-8200A/LE-8200


Image of Use

OP-SB89G is an expansion board for Ethernet LAN which is to be inserted into a slot of portable communication analyzer (LE-8200A/LE-8200). It has 4 LAN measurement ports and you can sniff 2 Ethernet lines at the same time by tap connection to capture packets on the 2 lines. It also can monitor input/output of a EtherCAT slave and measure the time delay cased by the slave.
The analzyer with this board acts as a stand-alone LAN analyzer and serves not only when you develop but also when you install a device to a system or analyze a network problem. It is useful for trouble shooting or development related with widely accepted industrial Ethernet communications such as EtherCAT.
It also has the packet generator function with which you can output test frames in the wire rate and the statistic function. Those functions will help you for a simulation testing in a development process or for an evaluation of line quality.

Comparison table of OP-SB89G, OP-SB89E, and OP-SB89

LAN measurement board

(1) PORT A and B Fail-safe TAP when using On-line monitor, Delay time measurement, Statistic analysis function.
LAN port of 10BASE-T/100BASE-TX/1000BASE-T when using PING, Port blinking, PG function.
(2) PORT C and D Fail-safe TAP when using On-line monitor, Delay time measurement, Statistic analysis function.
(3) External input/output Automatically stops the on-line monitor when external signal connected to the TRG IN terminal becomes “L” level.
Line state sheet for LAN signals
Insert the
LAN state sheet
Line state sheet
for OP-SB89E
LED When TAP connected
Link ON Each PORT is Link-up
OFF Each PORT is Link-down
100M ON 100BASE-TX connection
OFF 10BASE-T connection
Full DX ON Full Duplex connection
OFF Half Duplex connection
Mode(TAP) ON PORTS work as fail-safe tap.
Mode (PG) ON PORTS works as LAN ports.

Monitor Function

This function is to capture Ethernet packets on the network and save them with time stamps to the buffer memory. It can capture packet of up to 2 channels.

Data Use

Measured data can be converted into pcap format by the utility software (lepcapcvt), and analyzed using the Ethereal and Wireshark (free software).
Furthermore, data can be used in the PC by transferring it via the external memory card.

*1 A USB cable is not provided with the product. Prepare a USB cable if you intend to use USB connection.
The LE2-8V AUX cable provided to the analyzer is available in the case of serial connection.
*2 LE-8200A/LE-8200 can save data in the CF card.
An interface to read the CF card is required on the PC side.
*3 LE-8200A can save data in the USB flash drive.
< Screen of utility software "lepcapcvt" >
< Example of using data on the Wireshark >

Transmits packets up to 100Mbps line rate.

Packet Generator function transmits the test packets at specified rate to evaluate the processing ability of network devices and to check the action of the devices under the high traffic. Test packets are generated in the FPGA, so it will not be affected by the performance of PC.

Delay Time Measurement Function


Statistic Function

Communication traffic and numbers of error packets can be calculated and displayed in graphs. <Graph display>
<Counter display>
Total Total reception frames
Good Normal frames
Broadcast Broadcast
Multicast Multicast
Pause Pause frames
Length1 Numbers of packets of 0 – 63 byte
Length2 64 byte packets
Length3 Numbers of packets of 65 – 127 byte
Length4 Numbers of packets of 128 – 255 byte
Length5 Numbers of packets of 256 – 511 byte
Length6 Numbers of packets of 512 – 1023 byte
Length7 Numbers of packets of 1024 – 1518 byte
Length8 Numbers of packets of 1519 byte or more
CRC error CRC error
Alignment error Alignment error
Fragment error Fragment error

PING function, Port-blinking function

<Connection image of Port-blinking>

OP-SB89G has the PING function for linking test, and port-blinking function to find the specific cable to easily fin the cable from the large numbers of other cables. This is not only useful for developing LAN devices but also for installing the LAN devices in the building.


Interface Port A,B,C,D*1: 100BASE-TX/10BASE-T
Monitor function Measures and logs the LAN frames run between port A - B and port C - D.
Frame size: 60byte - 9Kbyte,
Time stamp (13 digit, minimum resolution: 40ns,)
Auto stop by external signal trigger
Recording Frame Max. 48,000 - 1,048,000 frames (equivalent to 100Mbyte)*2
Translation Translatable protocol: IPv4, ARP, ICMP, TCP, UDP, DHCP, EtherCAT
A software to convert the log file to pcap format is attached.*3
Filter function Monitoring of specified frames (such as MAC address, IP address etc.)
Auto save function Saves the captured data automatically into the CF card as communication log files.
Retrieval function Searches the specified frame and count it.
Delay time measurement function Measures the time lag between the receiving timings of specified ports in µs unit.
(Current, Max, Min, and Average delay times are displayed.)
Statistic function This function keeps statistics of 2 kinds of frame counters by specified interval, and display it in a graph.
It is possible to display all the frame counter values in real time
PG function Outputs an arbitrary packet in the wire rate from the port A.
You can transmit up to 16 kinds of packets for the specified times or continuously.
A frame gap can be set for each packet.
PING functions Sends a PING command and displays response status
Port Blink function Make periodically blink the link LED of the hub connected with the board.
Accessories Interface expansion board, Line state sheet, LAN cable, Utility CD
*1: The circuit between the ports are fail-safe tap.
*2: Recorded with 12 bytes of additional information for each frame.
*3: The software for conversion into pcap format works on Windows 7/8/8.1/10 PC.