HC-ERT-M

HC-ERT-M

Overview

The HC-ERT-M bit error tester operates at data rates from 64Kbps to 2Mbps. It is necessary measuring instrument, designed for field use in V.35,V.24and E1 line access, maintenance, check and acceptance. It features in low power consumption, light and convenient for carry, it is the ideal testing instrument for modern communication engineer.

The HC-ERT-M support three interfaces:V35,V24 and E1.When testing a DCE, all the settings can be throught menu setup, and the mode of display handover simply. The testing results show on the LCD, various statistics for code error performance index like: counting bit errors, bit error rate, block errors, errored second and testing time. As this instrument is a plug and play tester, the operation is easy.

Features

Portable device, lightweight and easy-to-use

Menu driven setup, LCD display

Can inject an error, for checking the tester,the line and the device

Having complete warning and indication

Attached a DC power supply

Changing the test cable, user can test V.35, V24 and E1 device

Background lighting, allow using in the darkness

Provide various test signal sequences

PRBS:31PRBS sequence; 511PRBS sequence; 2048PRBS sequence

Constant bit:10101010...sequence,10001000...sequence

The pseudo-random sequence codes comply with ITU-T O.151, O.152, and O.153

Specification

V.35 interface:

Comply with ITU-T V.35 protocol

Rate: N×64K（N=1～32）

Interface mode:DTE

V.24 interface:

Comply with ITU-T V.24 protocol

Rate: N×64K（N=1～5）

Interface mode: DTE

E1 interface :

Comply with ITU-T G.703 protocol

Line codes:HDB3

Impedance: 75/120 Ω (choosing by changing the test cable)rn
Time clock: internal clock / external clock

The way of insert error codes: single bit insertion

Testing result display mode: counting bit errors, bit error rate, block errors, errored second and testing time

Connector: DB37/F (testing mode depends on different cable: V.35, V.24 or E1)

Alarm and indication:sync loss alarm, transceiving data and clock indication,

handshaking indication

Power supply: 5V switch power supply, power consumption less than 3W
Dimension: 170L × 95W × 34H (mm)

Operating temperature: 0℃～+40℃

Store temperature: -20℃~+70℃

Relative humidity: 0%～90%(no coagulation)