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ZIV MAS-2 User Manual

1u shelf with asynchronous programmable modem mafp
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Communication solutions for power utilities
1U SHELF
TYPE MAS-2
WITH ASYNCHRONOUS PROGRAMMABLE MODEM
MAFP
Rev. 9 - January 2018
ZIV
Antonio Machado,78-80 08840
Viladecans, Barcelona-Spain
Tel.: +34 933 490 700
Fax: +34 933 492 258
Mail to: ziv@zivautomation.com
www.zivautomation.com
1/39

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  • Page 1 Communication solutions for power utilities 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP Rev. 9 - January 2018 Antonio Machado,78-80 08840 Viladecans, Barcelona-Spain Tel.: +34 933 490 700 Fax: +34 933 492 258 Mail to: ziv@zivautomation.com www.zivautomation.com 1/39...

  • Page 2: Type Mas

     equipment or even injury to the personnel handling it. NOTE: Information or important aspects to take into account in a procedure, operation or alike. 2/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 3: Table Of Contents

    COMMISSIONING FRONT-PLATE ELEMENTS 4.1.1 CONFIGURATION microswitch 4.1.2 Signalling 4.1.3 Adjustments and test points INTERNAL MICROSWITCH (MI2) INTERNAL JUMPERS ADJUSTMENTS 4.4.1 Transmit-level adjustment 4.4.2 Receive-level adjustment 3/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 4: Introduction

    "1", "0" or "1:0". CONSTITUTION OF THE EQUIPMENT The MAS-2 consists of a shelf that is one standard unit (s.u.) in height and 19” in width. The MAFP module, incorporated in the shelf, is formed by a single-printed circuit board where all the elements necessary for the transmission of a succession of binary data in a voice-frequency channel are located.

  • Page 5: Technical Characteristics

    (see Figure 2). Modems with other frequencies can be supplied on demand 5/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 6 The only transmission speed for which the transmission and reception filters are not the same is 50 Bd. The bandwidth of the reception filter is of 121 Hz whilst that of transmission is of 140 Hz. 6/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 7: Receiver

    For waves applied between: - Output terminals and power supply terminals. - Output terminals and alarm relay terminals. - Output terminals and ground terminals. 7/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 8 1 kV For waves applied between: - Input terminals and power supply terminals. - Input terminals and alarm relay terminals. - Input terminals and ground terminals. 8/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 9: Data Interface

    - At 600 Bd: 5.6 ms - At 1200 Bd: 9 ms =1700 Hz), 18.4 ms =2940 Hz) At 2400 Bd: 18 ms 9/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 10: Power Supply

    IEC 870-2-1 class 2. 1 kV /50 Hz/1 min Impulse voltage IEC 870-2-1 class 2. (1.2/50 s) 2 kV Fast transient bursts IEC 870-2-1 level 3. 2 kV 10/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 11: Environmental Conditions

    IEC 721-3-2 class 2M1 1.2.7 Other characteristics Alarm relay Changeover maximum current Changeover maximum voltage 250 V , 150 V Changeover maximum power See Figure 1 11/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 12 IEC 870-2-1 class 2. (1.2/50 s) 2 kV Maximum dimensions 483 x 44 x 326 mm. See figure at the end of the manual Weight 3.35 kg 12/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 13 Communication solutions for power utilities Figure 2 Central frequencies programmable in the MAFP modem according to the data transmission speed 13/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 14 2100 Hz Figure 4 Response curve of the transmission and reception filters for a transmission speed of 100 Bd and central frequency of 1920 Hz 14/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 15 200 Bd/120 Hz and central frequency of 2040 Hz Figure 6 Response curve of the transmission and reception filters for a transmission speed of 200 Bd/90 Hz and central frequency of 1980 Hz 15/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 16 200 Bd/60 Hz and central frequency of 3500 Hz Figure 8 Response curve of the transmission and reception filters for a transmission speed of 600 Bd and central frequency of 1800 Hz 16/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 17 1200 Bd and central frequency of 1700 Hz Figure 10 Response curve of the transmission and reception filters for a transmission speed of 1200 Bd and central frequency of 2940 Hz 17/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 18 Communication solutions for power utilities Figure 11 Response curve of the transmission and reception filters for a transmission speed of 2400 Bd and central frequency of 2000 Hz 18/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 19: Operating Principle

    The demodulation of the signal is carried out in the DSP, which gives a signal whose level depends on the frequency received after having been low-pass filtered. A discriminator block restores the sequence of binary data to the RD output. 19/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 20: General Alarm

    When a loop or the sending of tests signals is carried out, the DSR signal is disabled. 20/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 21: Line Loop

    The TD and RD LEDs of the local modem remain associated to it and not to the DTE. Figure 13 Data loop carried out in local modem 21/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 22: Continuous Sending Of Test Signals

    The receiver adjustment must be carried out taking into account the weakest signal to be received. 22/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 23: Installation

    1.2, TECHNICAL CHARACTERISTICS of this manual. MECHANICAL AND ELECTRICAL CHARACTERISTICS The MAS-2 equipment consists of a 19” shelf that is one standard unit (s.u.) in height, prepared for rack mounting. The shelf features two endplate angles for fixing the shelf to the frame of a cabinet.

  • Page 24: External Connection

    EXTERNAL CONNECTION The MAS-2, at the back part, consists of four connection blocks, one for the power supply, another for line connection, either reception or transmission, a third for the general-alarm relay associated to the modem, and a fourth, a 25-pin female connector type SUB-D for the connection of a RS-232C interface.
  • Page 25 Communication solutions for power utilities Figure 15 Use of the power-supply connector Figure 16 Use of the alarm connector 25/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 26  CD - Data carrier detect  DSR - Modem ready Signal ground (common return) 32ac Protective ground Table 1 Assignation of RS-232C connector pins 26/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 27 Communication solutions for power utilities Figure 19 Rear view of the shelf 27/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 28: Commissioning

    Delay selection between the RTS and CTS signals. Microswitch RTS-CTS delay (ms) 600, 1200 and 50, 100 and 200 bit/s 2400 bit/s Table 2 Delay between RTS and CTS 28/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 29 Continuous sending of a logical level "1" Continuous sending of alternate sequence of "0" and "1" Continuous sending of a logical level "0" Table 3 Test signals 29/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 30: Signalling

    Alarm and loops DATA LOOP LED Amber. Lights up when data loop is carried out. LINE LOOP LED Amber. Lights up when line loop is carried out. 30/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 31: Adjustments And Test Points

    Adjustment of the receiver sensitivity within the limits of potentiometer the range established by jumper S3. RCV MEASUREMENT / Signal level in reception. Ground test points 31/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 32 Communication solutions for power utilities Figure 20 Front view of the MAFP module 32/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 33: Internal Microswitch (Mi2)

    6, 7, 8, 9 and 10 in order to program the desired frequency (in Hz), according to the speed programmed in microswitches 3, 4 and 5. 33/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 34 2580 2700 2820 2940 3060 3180 3300 3420 3540 3660 3780 75/600: 420 75/1200: 420 Table 5 Programming of the central frequency of the modem 34/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 35: Internal Jumpers

    15 dBm to 0 dBm 30 dBm to 15 dBm Selection of the receiver-sensitivity range. Without jumper: 7 to 0 dBm 29 to 6 dBm 43 to 21 dBm 35/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 36: Adjustments

    RCV MEASUREMENT also situated on the front plate. It may be necessary to change the scale by putting jumper S3 in another position. 3. Check that the CD LED remains lit. 36/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

  • Page 37: With Asynchronous Programmable Modem Mafp - Rev. 9 (January

    Communication solutions for power utilities Figure 22 Back panel (WMAS) 37/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 38 Communication solutions for power utilities Figure 23 Asynchronous modem (MAFP) 38/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)
  • Page 39 Communication solutions for power utilities Figure 24 Overall dimensions (MAS-2) 39/39 1U SHELF TYPE MAS-2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9 (January 2018)

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