MT 4000 – Bit Error Rate Tester

MT 4000 – Bit Error Rate TesterThe MT4000 multi interface portable BERT tester is a sophisticated unit in a compact, hand held package. It can test a wide variety of communications facilities and equipment including T-1, fractional T-1, E-1, fractional E-1, modems, multiplexers, CSU/DSUs, T-1 ESF CSUs, DU, NTUs and TIUs.

The MT 4000 is supplied complete with V.35, RS232, RS422/RS530, X.21, DS1 (T-1, 1.544 Mbps) and G.703 (E-1, 2.048 Mbps) interfaces. The Tester includes a wall-mounted AC transformer. A battery option is also available for complete portable operation. With this option, a nickel metal hydride battery and a recharger are built into the Tester.

  • Speeds from 50bps – 8,192Mbps Interface
  • E1 and T1, Fractional T1 and E1
  • V35, V24, RS422/ RS530, X21 Interfaces
  • Displays G821 measurements
  • Front panel or VT100 console control
  • Multiple test patterns
  • 16 LED indicators plus 2 line LCD display
  • Both Battery and/or mains power

T-1 and E-1 Testing
The user can choose from four operating modes: T-1, E-1, asynchronous and synchronous. A variety of test patterns can be inserted in all or selected time slots/DS0s, continuous or non-contiguous, making the Tester ideal for fractional T-1 and E-1 testing. In the T-1 and E-1 modes, the WAN Tester counts and displays bit errors, transmit and receive frequency, test seconds, bit error rate, and G.821 performance measurements (errored seconds, severely errored seconds, degraded minutes and available and unavailable times). In the T-1 mode it also displays receive level.

Asynchronous and Synchronous Testing
In addition to T-1 and E-1, the WAN Tester provides asynchronous and synchronous test modes. It generates test data in a choice of patterns and formats. The user can choose from a selection of twenty-eight asynchronous and seventy-five synchronous test speeds. The Tester counts and displays bit errors, bit error rate, and total test seconds. In the asynchronous mode, it also counts and displays characters received, character errors and errored seconds. In the synchronous mode, it also displays transmit frequency, receive frequency, clear to send delay and G.821 performance measurements.

Easy to use
The WAN Tester can be controlled from the front panel or from a local or remote VT100 terminal. It includes a two-line LCD display and sixteen indicator lights that show selected mode, test and operating parameters. Parameters are selected by scrolling through values stored in the Tester. All operations can be performed using only ten keys.

Technical Details
ModeAsynchronousSynchronousT-1E-1
Speeds50 bps to 115000 bps1200 bps to 2048000 bps1544000 bps2048000 bps
DisplaysBit Errors
Character Error
Total Test Seconds
Errored Second
Characters Received
Bit Errors
Bit Error Rate
Total Test Seconds
Errored Seconds
Severely Errored Secs
Degraded Minutes
Available
Unavailable
Transmit Frequency
Receive Frequency
Clear To Send Delay
Bits Received
Bit Errors
Bit Error Rate
Total Test Seconds
Errored Seconds
Severely Errored Secs
Degraded Minutes
Available
Unavailable
Transmit Frequency
Receive Frequency
RX Level
Frame Errors
CRC Errors
BiPolar Violations
Bit Errors
Bit Error Rate
Total Test Seconds
Errored Seconds
Severely Errored Secs
Degraded Minutes
Available
Unavailable
Transmit Frequency
Receive Frequency
LED’sPattern Lock
Pattern Recovered
Transmit Data
Received Data
Request To Send
Clear To Send
Data Set Ready
Carrier Detect
Data Terminal Ready
Pattern Lock
Pattern Recovered
Transmit Data
Received Data
Request To Send
Clear To Send
Data Set Ready
Carrier Detect
Data Terminal Ready
Pattern Lock
Pattern Recovered
Frame Lock
All 1s
All 0s
CRC Error
BiPolar Violation
D4
ESF
AMI
B8ZS
Yellow Alarm
Pattern Lock
Pattern Recovered
Frame Lock
All 1s
All 0s
CRC Error
BiPolar Violation
Distant Multiframe Alarm
Receive Remote Alarm
Patterns2 6 (63)
2 9 (511)
2 11 (2047)
Binary
Fox Test
Marks
Spaces
2 9 (511)
2 11 (2047)
2 15 (32767)
QRSS
2 20 (1048575)
2 23 (8388607)
Marks
Spaces
1 of 8
2 9 (511)
2 11 (2047)
2 15 (32767)
QRSS
2 20 (1048575)
2 23 (8388607)
Marks
Spaces
1 of 8
3 of 24
2 9 (511)
2 11 (2047)
2 15 (32767)
QRSS
2 20 (1048575)
2 23 (8388607)
Marks
Spaces
1 of 8
3 of 24
LoopsSelf-testSelf-Test
V.54
Self-Test
V.54
Loop Up/Down
Smart Jack 1 Framed
Smart Jack 1 Unframed
Smart Jack 2 Framed
Smart Jack 2 Unframed
Self-Test
V.54
InterfacesRS232
RS422
RS530
V.35
RS232
RS422
RS530
V.35
X.21
DS1 BiPolar
AMI/B8ZS
CCITT G.703
CCITT G.704
HDB3 Coding