Interface (standard) RS-232C (V.24), RS-422/485 (RS-530)
Interface (optional) current loop, 3V/5V TTL (I2C not available)
Capture memory
1.2Mbyte (600K data)
Two divided areas, data protection, and selection between fixed-size buffer and ring buffer
Can back up data using a built-in nickel hydrogen battery for about 30 days.
Baud speed Full duplex: Max. 250 Kbps
Half duplex: Max. 250 Kbps
Internal clock (bps) Enables to set user-defined speed for transmission/reception at the range from 50 to 250 Kbps in 4-digit decimal figures.
Setting error : +0.01% and -0.01% or less
Data format NRZ
Data code ASCII, EBCDIC, JIS7, JIS8, Baudot, Transcode, IPARS, EBCD, EBCDIK, HEX
Character framing ASYNC: Data bit (5/6/7/8) + parity bit (0/1) + stop bit (1/2)
Multiple-processor bit Displays 1/0 state of multiple-processor bit with a special mark
Bit transmission order LSB first, MSB first (switchable)
Polarity inversion NORMAL, INVERT (switchable)
Error check Parity (ODD, EVEN, MARK, SPACE), framing, break, BCC (LRC, CRC-6, CRC-12, CRC-16, , CRC-ITU-T, FCS-16, FCS-32)
Monitor function Handles half-duplex and full-duplex communications.
Idle time display (max. 999.9s, resolution: 1ms, 10ms, 100ms), OFF (no recording)
Time stamp display (day/hour/min., hour/min./sec. or min./sec./10ms), OFF (no recording)
Line status display Records and displays the waveforms of 4 digits (chosen from RS, CS, ER, DR, CD, CI, and EXIN (external input)) along with transmitted/received data.
Pause in capture, scroll, paging, jump to the specified screen, bit shift in SYNC
Protocol translation display PPP, BSC
Interface lead status LEDs
(2-color LEDs)
RS-232C - Indicates the logic of signals with 3 modes: ON (red), OFF (green), NC (not lighting).
Others I/F - Indicates the logic of signals with 2 modes: ON (red), NC (not lighting).
Timer/counter Interval timer: 2kinds (Max. 999999, resolution: 100ms, 10ms, 1ms selectable),
Universal counter : 2kinds (Max. 999999)
Data counter: 1 each for SD and RD (Max. 4294967295)
Trigger function
Up to 4 pairs of trigger condition and action can be specified. (sequential action, which validates another condition after one condition satisfied, is also possible.)
condition: Communication errors (parity, MP, framing, BCC, break, can be specified individually.), communications data string up to 8 characters (don't care and bit mask available), idle time more than the specified duration, match time,/counter value, logic status of interface signal line, external trigger input
action: Stops measurement/test (offset can be set), validates trigger condition: controls timer (start/stop/restart), controls counter (count/clear), activates buzzer, saves monitor data on a memory card, sends the specified character string (during manual simulation).
external trigger output: Sends pulse to external signal when condition satisfied.
Data search function Shows the match data at the top or enumeration display (selectable).
Search condition: error (parity, MP, framing, BCC, break/abort, short frame selectable), the data string up to Max. 8 characters, idle time over specified time, time stamp for specified time
Monitor condition auto setting Protocol, transmission speed (Max. 115.2Kbps), data code, character synchronous, enables to auto-set the measurement conditions such as BCC
Auto run/stop function Enables measurement to start and end at the specified time at the selected repeating cycle (monthly, daily, hourly).
Power ON auto run function Enables measurement to start automatically after power is turned ON.
Auto save function Enable to auto-save data in the capture memory, which is being monitored, as log file onto a memory card.
File size: BUF (capture memory size), 1M, 2M, 4M, 8M
MAX. files: 512
Delay time measurement Measures and displays the time between changes of interface signal lines (resolution 0.1ms)
Logic analyzer Sampling clock : 1KHZ to 20MHz (14 steps)
Sampling memory : min. 2000 sampling
Trigger: matching the signal line and logic state of the external signal
Trigger position : before, center, after
Scale-up/down : *16, *8, *4, *2, *1, *1/2, *1/4, *1/8, *1/16, *1/32,
Time measurement by the cursor, exchange the signal lines, search a signal state
Bit error rate test Measures error rate conforming to ITU-T Notification G.821 by loop-back test or interactive test.
Measurable in the ASYNC mode
DTE/DCE pin assignments selectable
Max. speed: 250 Kbps
Pattern : 26-1, 29-1, 211-1, MARK, SPACE, ALT, DBL-ALT, 1in4, 1in8, 1in16, 3in2
(Inserts 1-bit or 5-bit error in test pattern by key operation.)
Measurement range: Effective bits received (0 to 9999999 to 9.99E9), Error bit count (0 to 9999999 to 9.99E9), Bit error rate (0 to 9.99E-9 to 1), Block error count (0 to 9999999 to 9.99E9), Block error rate (0 to 9999999 to 9.99E9), Savail (Available measurement in seconds 0 to 9999999), SYNC loss count (0 to 9999), Error in seconds (0 to 9999), %E.F.S (Normal operation rate 0.000 to 100.000%)
Simulation function Enables the transmission test of user-defined data (DTE/DCE pin assignments selectable)
Transmission data memory: 16k
Enables to divide to 16 kinds of the data tables for registration.
Enables to register parts of transmission data as error data such as parity error.
Enables to preset the interface signal line's change and transmission timing
Enables to control the transmission driver for RS-485
MANUAL mode While checking communications condition on the monitor, specified data can be transmitted as pressing the corresponding keys with the transmission trigger function when the trigger conditions are matched.
FLOW mode Simulates on the transmission and reception-lines using X-on/off flow control or the control line handshake of RTS/CTS.
ECHO mode Returns reception data by a frame unit after specified response time.
Display Monochrome LCD, 240 x 64 dot, without backlight
Memory card interface Supports the dedicated memory cards for 16MB, 64MB, 512MB (Flash card)
Saves/loads the measurement conditions, capture data, simulation data
AUX (RS-232C) port RS-232C, 9600 to 230.4Kbps (6 steps)
Data output, remote controls input/output from the external devices, input for updating to firmware, PC link software (LE-PC300F)
Printer interface Centronics 14 pin: LCD display screen, printing continuous format of measurement data
Power supply Built-in NiMH battery, AC adapter, DC9V, 1.7A (AC100 to 240V, 50/60Hz)
Battery operating / charging time Operating time: approx. 8hours
charging time: approx. 2.5hous
39 (H) x 240 (W) x 180 (D) mm, approx. 940g
Environmental requirement Temperature range: 0 to 40 degree Celsius centigrade (operating) ; -20 to 60 degree Celsius (storage)
Humidity : 90%RH or below (no condensation)
DSUB 25pin monitor cable (LE-25M1), DSUB9pin serial AUX
cable (LE2-8V), external signal I/O cable, AC adapter, carrying
bag, utility CD-ROM, instruction manual and warranty
Name Model
TTL, I2C Expansion Kit (I2C not available) OP-SB5F
Expansion Board for Adapter SB-20L
Adapter for Current Loop OP-1C
Monitor Cable for DSUB 9-Pin LE-259M1
Terminal Block for DSUB 25-Pin LE-25TB
RS-530 Cable LE-25S530
AUX Cable for DSUB 25-Pin LE2-8C
PC Link Software LE-PC300G
NiMH Battery Pack for Replacement P-19S