Specifications

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Technical Index:

2M Technical Index

(1) Signal input rate: 2048kbit/s±100ppm(G.703 requirement±50PPM)

(2) Signal coding: HDB3, AMI.

(3) Input balance response: Attenuation complies with the law of square root of frequency, and is within the range of 0 to 6dB at 1024 kHz.

(4) Input Impedance

(4.1) Unbalance terminating: 75Ω

Balance terminating: 120Ω.

Reflection loss >18dB within 50Hz~3100kHz.

(4.2) Unbalance bridging: >W750Ω

Balance bridging: >W1200Ω

(4.3) Unbalance monitoring: 75Ω, 26dB gain

Balance monitoring: 120Ω, 26dB gain

Reflection loss >18dB within 50Hz~3100kHz.

(5) Signal structure

(5.1) Non-frame structure

(5.2) Frame structure: PCM30, PCM31, PCM30CRC, PCM31CRC

Frame structure complies with the requirement of G. 704.

(6) Testing pattern: 26-1,29-1,211-1,215-1,220-1,223-1, and artificial code

(7) Impedance of output interface:

(7.1) Non-balance 75Ω, up to G. 703

(7.2) Balance 120Ω, up to G. 703.

(8) External clock input

(8.1) Signal form: HDB3, NRZ

(8.2) Balance terminating resistance: 120Ω

Unbalance terminating resistance: 75Ω

Balance bridging resistance: >1200Ω

Unbalance bridging resistance: >750Ω

 

Other Parameters:

• Power supply

(1) Special power adapter

Input: AC220V 50Hz

Output: DC 9V 1A

(2) Internal rechargeable battery

4000mAh, 6V nickel-hydrogen rechargeable battery

Working time: 8 hours

Charging: 8 hours at power-off state, and 12 hours at power-on state.

• Printer: μP40-TS(CH) Chinese character micro-printer with standard level and serial port.

• Dimension :L×W×H: 200×160×42mm

Ambient para meters:

Operation temperature: 0~40°C

Storage Temperature: -30~+70°C

Humidity: 5%~90%, non-condensing