PRODUCT

OP-SB6F [ Infrared Communications Expansion Kit (IrDA, ASK) ]

[ Discontinued ]
Infrared Communications Expansion Kit
Expansion board with probe pod for monitoring IrDA (SIR, MIR, FIR) and ASK infrared communications. Supports automatic setting of communication speed according to IrDA protocol.

Outline

OP-SB6F is the interface expansion kit which monitors and simulates IrDA 1.0/1.1 (SIR/MIR/FIR) and the infrared communications based on ASK standard.
Outline Outline

Auto Detection based On Communication Speed of IrDA

In general, Infrared communications of the IrDA protocol starts to measure at 9600bps and changes speed while communicating. The general protocol analyzers cannot correspond to change of the measuring condition while measuring. So, IrDA data cannot be measured when communicating. By using the analyzer (LE-7200-E/LE-3200-E/LE-2200-E) and OP-SB6F, the analyzer can analyze the SNRM command and the UA response of the IrLAP procedure, and automatically detect communication speed of IrDA and the frame format. Therefore, you can continuously monitor the change of data.

IrDA(SIR/MIR/FIR) Support

<Communication Condition Setting Screen of IrDA>
Communication Condition Setting Screen of IrDA
The communication frame format of SIR/MIR/FIR is automatically set based on communication speed. Usually, when IrDA is monitored, setting 9600bps enables you to start the measurement.

When communication speed is 2400bps, 9600bps, 19.2Kbps, 38.4Kbps, 57.6Kbps or 115.2Kbps, it will become the SIR format.
Frame Format Asynchronous Standard
[ BOF ]+[ ADDR ]+[ control ]+[ information ]+[ FCS ]+[ EOF ]
Data Transmission
Procedure		 Escape Code 7D
*If the control code of C0 (BOF), C1(EOF) or 7D is transmitted as data, insert
7D to the head of data and transmit data XORed with each control code by 20h
C0(BOF) -> 7D E0 C1(EOF) -> 7D E17D -> 7D 5D
Abort 7D C1

When communication speed is 0.576Mbps or 1.152Mbps, it will become the MIR format.
Frame Format
HDLC Standard
[ STA ]+[ STA ]+[ ADDR ]+[ control ]+[ information ]+[ FCS ]+[ STO ]
STA : Start Flag, 01111110 binary
ADDR : 8 bit Address Field
Control : 8 bit Control Field
Information : Information Field Max. 2045 = (2048 - 3) bytes
FCS : CCITT 16 bit CRC
STO : Stop Flag, 01111110 binary
Abort If 1 continues seven times without optical signals

When communication speed is 4Mbps, it will become the FIR format. The FIR format is not supported on LE-3200-E/LE-2200-E.
Frame Format
4 Pulse Position Modulation (4PPM) encoding system
[ PA ]+[ STA ]+[ ADDR ]+ [ control ]+[ information ]+[ FCS ]+[ STO ]
PA : Preamble, 1000 0000 1010 1000 binary
STA : Start Flag, 0000 1100 0000 1100 0110 0000 0110 0000 binary
ADDR : 8 bit Address Field, 4PPM format
control : 8 bit Control Field, 4PPM format
information : Information field Max. 2045 = (2048 - 3) bytes
FCS : CCITT 32 bit CRC, 4PPM, format
CRC(x)=x32+x26+x23+x22+x16+x12+x11+x10+x8+x7+x5+x4+x2+x+1
STO : Stop Flag, 0000 1100 0000 1100 0000 0110 0000 0110 binary
Abort All the patterns against 4PPM

Translation Display on the Stream of IrDA Data

Even if monitoring, you can switch from the data display screen to the translation display screen by pressing the [DISPLAY] key. You will be able to analyze the contents in the control field of IrDA communications data frame in detail.
<Example of Data Display>
Example of Data Display		 <Example of IrDA Translation Display>
Example of IrDA Translation Display
    Example of IrDA Translation Display
Displays a monitoring communication speed on the right below
U (unnumbered) Format : when both bit 0 and 1 are 1
7 6 5 4 3 2 1 0 Type of Command / Response
1 0 0 P 0 0 1 1 SNRM (Set Normal Response Mode) command
0 1 0 P 0 0 1 1 DISC (Disconnect) command
0 0 0 P 0 0 1 1 UI (Unnumbered Information) command
0 0 1 P 1 1 1 1 XID (exchange station identification) command
1 1 1 P 0 0 1 1 TEST command
1 0 0 F 0 0 1 1 RNRM (request normal response mode) response
0 1 1 F 0 0 1 1 UA (unnumbered acknowledgment) response
1 0 0 F 0 1 1 1 FRMR (Frame Reject) response
0 0 0 F 1 1 1 1 DM (disconnected mode) response
0 1 0 F 0 0 1 1 RD (Request disconnect) response
0 0 0 F 0 0 1 1 UI (Unnumbered Information) response
1 0 1 F 1 1 1 1 XID (exchange station identification) response
1 1 1 F 0 0 1 1 TEST response

S (supervisory) Format : When bit 0 is o and Bit 1 is 1
7 6 5 4 3 2 1 0 Type of Command / Response
Nr Nr Nr P/F 0 0 0 1 RR (receive ready) command/response
Nr Nr Nr P/F 0 1 0 1 RNR (receive not ready) command/response
Nr Nr Nr P/F 1 0 0 1 REJ (reject) command/response
Nr Nr Nr P/F 1 1 0 1 SREJ (selective reject) command/response

I (information) Format : when bit 0 is 1
7 6 5 4 3 2 1 0 Type of Command / Response
Nr Nr Nr P/F Ns Ns Ns 0 INFO (information) command/response

Specification

Interface RS-232C, IR
Measurement Signal SD, RD
Protocol IrDA1.1 (SIR/MIR/FIR), ASK
Baud Rate (bps) 2400, 9600, 19.2K, 38.4K, 57.6K, 115.2K, 0.576M, 1.152M, 4M (*1)
Automatically detects and follows IrLAP protocol
Function Monitor / Simulation
Photodiode / LED HSDL-3602 or equivalent
Outpuh Emission Level High/Low interchangeable (*2)
Composition Dedicated expansion board (SB-20L), Relay cable,
Infrared ray measurement pod
(*1) Restricted by analyzer performance.
(*2) Set from analyzers.