For Datacom:

 ¡¤ V.24/RS232/V.28, V.35, V.36, X.21, RS-449, RS-485, RS422, EIA-530, EIA-530A datacom testing

 ¡¤ SYNCH and ASYNCH testing

 ¡¤ DTE and DCE emulation

 ¡¤ Bit code testing

 ¡¤ Pattern slip testing

 ¡¤ Signal loss alarm

 ¡¤ Line signal level and frequency testing

 ¡¤ Loop delay testing

 ¡¤ Automatic protection switching time testing(APS)

 ¡¤ G.821, M2100 service interrupt error testing


For co-directional 64Kbit/s:

 ¡¤ Service interrupt error testing

 ¡¤ Bit code testing

 ¡¤ Pattern slip testing

 ¡¤ Signal loss, AIS alarm

 ¡¤ Line signal frequency testing

 ¡¤ Loop delay testing

 ¡¤ Automatic protection switching time testing(APS)

 ¡¤ G.821, M.2100 error testing

¡ô Technical Index

 ¡¤2M Technical Index

 (1) Signal input rate: 2048kbit/s¡À100ppm£¨G.703 requirement¡À50PPM£©

 (2) Signal coding: HDB3, AMI.

 (3) Input jitter tolerance: Up to the requirement of Figure 10.1.

Fig.10.1 Input Jitter Tolerance

 (4) 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.

 (5) Input Impedance

  (5.1) Unbalance terminating: 75¦¸

    Balance terminating: 120¦¸.

    Reflection loss >18dB within 50Hz¡«3100kHz.

  (5.2) Unbalance bridging: >750¦¸

    Balance bridging: >1200¦¸

  (5.3) Unbalance monitoring: 75¦¸, 26dB gain

    Balance monitoring: 120¦¸, 26dB gain

    Reflection loss >18dB within 50Hz¡«3100kHz.

 (6) Signal structure

  (6.1) Non-frame structure

  (6.2) Frame structure: PCM30, PCM31, PCM30CRC, PCM31CRC

    Frame structure complies with the requirement of G. 704.

 (7) Testing pattern: 2⁶-1¡¢2⁹-1¡¢2¹¹-1¡¢2¹⁵-1¡¢2²⁰-1¡¢2²³-1, and artificial code

 (8) Impedance of output interface:

  (8.1) Non-balance 75¦¸, up to G. 703

  (8.2) Balance 120¦¸, up to G. 703.

 (9) External clock input

  (9.1) Signal form: HDB3, NRZ

  (9.2) Balance terminating resistance: 120¦¸

    Unbalance terminating resistance: 75¦¸.

    Balance bridging resistance: >1200¦¸

    Unbalance bridging resistance: >750¦¸.

 (10) Error code insertion: None, single, or ratio 10-1 ~ 10-7.

 ¡¤Co-directional 64k Technical Index

 (1) Signal input rate: 64 kbit/s¡À100ppm£¨G.703 requirement¡À100PPM£©

 (2) Input impedance: Balance 120¦¸, up to G.703

 (3) Input jitter tolerance: Up to G.823.

 (4) Impedance of output interface: Balance 120¦¸, up to G.703

 (5) Testing pattern:2⁶-1¡¢2⁹-1¡¢2¹¹-1¡¢2¹⁵-1¡¢2²⁰-1¡¢2²³-1, and artificial code
Input Impedance

 ¡¤Datacom Index

 (1) Data interface type: V.24, V.35, V.36, X.21, RS-449, RS-485, EIA-530 and EIA-530A.

 (2) Generator

  (2.1) SYNCH mode

    Clock source: Internal or external clock

    Phase relation between clock and data: co-direction or reverse direction.

    Rate: 1.2£¬2.4£¬4.8£¬9.6£¬14.4£¬19.2£¬38.4£¬48£¬56(kbps)£»N¡Á64kbps£¨N=1¡«32£©

    Error: ¡À15ppm£¨ppm: parts per million£©

  (2.2) ASYNCH mode

    Rate: 50£¬75£¬110£¬150£¬200£¬300£¬600£¬1200£¬2400£¬3600£¬4800£¬7200£¬9600£»14.4k£¬19.2k£¬38.4k£¬57.6k£¨bps£©

    Data structure: Word length: 5£¬6£¬7£¬8£¨bits£©£»Stop bit: 1£¬2£¨bits£©£»

    Odd-even check: odd, even, 1, 0, none

  (2.3) Error code insertion: None, single, or ratio 10-1 ~ 10-7.

 (3) Receiver

  (3.1) SYNCH mode

    Clock source: Internal or external clock

    Phase relation between receive clock and receive data: Equidirection or reverse direction.

    Clock Rate: 2048kbps at a maximum

  (3.2) ASYNCH mode

    The rate and data are the same as those of the generator.

 (4) Testing pattern: 2⁶-1¡¢2⁹-1¡¢2¹¹-1¡¢2¹⁵-1¡¢2²⁰-1¡¢2²³-1, and artificial code

¡ô 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.

 ¡¤Dimension and weight

  L¡ÁW¡ÁH: 200¡Á160¡Á42mm

  Weight: 950g

 ¡¤Ambient parameters

  Operation temperature: 0¡«40¡æ

  Storage Temperature: -30¡«+70¡æ

  Humidity: 5%¡«90%, non-condensing

¡ô Standard Configuration