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Communication solutions for power utilities 

1U SHELF TYPE MAS-2 
WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP - Rev. 9  (January 2018) 

18/39 

 

 

Figure 11    Response curve of the transmission and reception filters for a transmission 

speed of 2400 Bd and central frequency of 2000 Hz 

 

Summary of Contents for MAS-2

Page 1: ...ties 1 39 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 1U SHELF TYPE MAS 2 WITH ASYNCHRONOUS PRO...

Page 2: ...018 2 39 SAFETY SYMBOLS WARNING OR CAUTION This symbol denotes a hazard Not following the indicated procedure operation or alike could mean total or partial breakdown of the equipment or even injury t...

Page 3: ...ING PRINCIPLE 19 2 1 TRANSMISSION 19 2 2 RECEPTION 19 2 3 GENERAL ALARM 20 2 4 TEST DEVICES 20 2 4 1 Line loop 21 2 4 2 Data loop 21 2 4 3 Continuous sending of test signals 22 2 5 MODEM BLOCKING 22 3...

Page 4: ...rations of the MAFP modem allow it to share the available band with speech frequencies and teleprotection signals The speech band is limited by a frequency of 300 Hz and by an upper frequency that is...

Page 5: ...ion of the equipment status 1 2 TECHNICAL CHARACTERISTICS 1 2 1 Data transmission Data format Binary serial Asynchronous and anisochronous Modulation Frequency shift keying FSK Transmission speed Prog...

Page 6: ...w for each speed and as an example the response curve of the transmission and reception filters at a determined frequency Line frequency stability 0 5 Hz across the whole temperature range Transmissio...

Page 7: ...t in three ranges Nominal selectivity for an attenuation of 40 dB At 50 Bd 30 Hz 192 Hz At 100 Bd 60 Hz 380 Hz At 200 Bd 120 Hz 784 Hz At 200 Bd 90 Hz 560 Hz At 200 Bd 60 Hz 381 Hz At 600 Bd 180 Hz 16...

Page 8: ...etween 420 and 3800 Hz Isochronous distortion 3 for all speeds Carrier detection Generation of alarm at 14 dB below the adjusted receive nominal level Hysteresis 3 dB Insulation voltage IEC 870 2 1 cl...

Page 9: ...5 ms At 100 Bd 23 ms At 200 Bd 11 5 21 5 ms depending on the central frequency At 600 Bd 7 ms At 1200 Bd 14 ms f0 1700 Hz 32 ms f0 2940 Hz At 2400 Bd 32 ms Nominal delay in the CD signalling at the ap...

Page 10: ...State of the logical signals of the interface Realization of some kind of test Realization of line and data loops Equipment status Indication that the modem is configured to be used in Power Line Car...

Page 11: ...onditions Operating Temperature and humidity In accordance with IEC 721 3 3 class 3K5 5 C to 50 C 95 non condensing Mechanical IEC 721 3 3 class 3M1 Storage Maximum temperature In accordance with IEC...

Page 12: ...MODEM MAFP Rev 9 January 2018 12 39 NOTE 3A is the maximum current Figure 1 DC voltage DC current Insulation voltage IEC 870 2 1 class 2 1 kVrms 50 Hz 1 min Impulse voltage IEC 870 2 1 class 2 2 kVp 1...

Page 13: ...lutions for power utilities 1U SHELF TYPE MAS 2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP Rev 9 January 2018 13 39 Figure 2 Central frequencies programmable in the MAFP modem according to the data tra...

Page 14: ...ABLE MODEM MAFP Rev 9 January 2018 14 39 Figure 3 Response curve of the reception filter for a transmission speed of 50 Bd and central frequency of 2100 Hz Figure 4 Response curve of the transmission...

Page 15: ...Rev 9 January 2018 15 39 Figure 5 Response curve of the transmission and reception filters for a transmission speed of 200 Bd 120 Hz and central frequency of 2040 Hz Figure 6 Response curve of the tra...

Page 16: ...AFP Rev 9 January 2018 16 39 Figure 7 Response curve of the transmission and reception filters for a transmission speed of 200 Bd 60 Hz and central frequency of 3500 Hz Figure 8 Response curve of the...

Page 17: ...MAFP Rev 9 January 2018 17 39 Figure 9 Response curve of the transmission and reception filters for a transmission speed of 1200 Bd and central frequency of 1700 Hz Figure 10 Response curve of the tra...

Page 18: ...utilities 1U SHELF TYPE MAS 2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP Rev 9 January 2018 18 39 Figure 11 Response curve of the transmission and reception filters for a transmission speed of 2400 Bd...

Page 19: ...f the RTS signal is active and blocked in the opposite case The transmitter can be permanently activated by means of microswitch 7 The CTS signal is generated as a reply to the RTS signal after a pre...

Page 20: ...below the nominal level the general alarm is activated It must be taken into account that there is an hysteresis of 3 dB The general alarm is indicated by the STATUS LED lit permanently in red and ex...

Page 21: ...position The LEDs TEST and LINE LOOP on the front plate of the terminal light up to indicate this situation both being amber 2 4 2 Data loop As can be seen in Figure 13 a double loop is carried out i...

Page 22: ...the terminal by means of the lighting up of the TEST LED It is not necessary the activation of the RTS signal in order to continuously send test signals 2 5 MODEM BLOCKING Data reception remains block...

Page 23: ...l as the front plate As a guide to the mechanical installation a drawing at the end of the manual shows the general dimensions of the shelf The general power supply switch is found at the back of the...

Page 24: ...e 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 f...

Page 25: ...ication solutions for power utilities 1U SHELF TYPE MAS 2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP Rev 9 January 2018 25 39 Figure 15 Use of the power supply connector Figure 16 Use of the alarm conn...

Page 26: ...ne connection terminals Figure 18 RS 232C connector RS 232C connector J2 connector MAFP Use DTE DCE 2 22c TD Transmitted data 3 22a RD Received data 4 30c RTS Request to send 5 30a CTS Clear to send 8...

Page 27: ...Communication solutions for power utilities 1U SHELF TYPE MAS 2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP Rev 9 January 2018 27 39 Figure 19 Rear view of the shelf...

Page 28: ...ment of the modem are given The front view of the modem is shown in Figure 20 4 1 FRONT PLATE ELEMENTS All the accessible front plate elements are described below 4 1 1 CONFIGURATION microswitch Micro...

Page 29: ...ns of CD signal carrier loss Microswitches 9 and 10 Selection for sending of test signals and normal operation In all the test conditions the RTS signal is generated internally and continuously Config...

Page 30: ...is in active state DSR 107 LED Amber Indicates the modem is working correctly CD 109 LED Amber Indicates the detection of line signals and lights up when the level of the carrier is above a pre set le...

Page 31: ...ncorrect configuration the selected modem is inconsistent The LED lights in amber to indicate that the equipment is in firmware upgrade mode 4 1 3 Adjustments and test points XMT ADJUSTMENT potentiome...

Page 32: ...Communication solutions for power utilities 1U SHELF TYPE MAS 2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP Rev 9 January 2018 32 39 Figure 20 Front view of the MAFP module...

Page 33: ...lay blocked OFF Normal operation of the alarm relay controlled by CD signal Microswitches 3 4 and 5 Selection of the speed the modem will work at Microswitch Transmission speed Bd 3 4 5 ON OFF OFF 50...

Page 34: ...OFF OFF 1140 1920 3480 600 75 1500 ON ON ON OFF OFF 1260 2160 540 OFF OFF OFF ON OFF 1380 2400 900 ON OFF OFF ON OFF 1500 2640 1260 OFF ON OFF ON OFF 1620 2880 1620 ON ON OFF ON OFF 1740 3120 1980 OFF...

Page 35: ...igure 21 Position of the microswitch and the jumpers in the MAFP module 4 3 INTERNAL JUMPERS Figure 21 shows the position of the jumpers in the card S4 Selection of the transmission level range A 15 d...

Page 36: ...he transmitter output with a 600 resistor 2 Select the range required for the transmission level by means of jumper S4 3 The fine adjustment of the transmit level is carried out by means of potentiome...

Page 37: ...Communication solutions for power utilities 1U SHELF TYPE MAS 2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP Rev 9 January 2018 37 39 Figure 22 Back panel WMAS...

Page 38: ...Communication solutions for power utilities 1U SHELF TYPE MAS 2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP Rev 9 January 2018 38 39 Figure 23 Asynchronous modem MAFP...

Page 39: ...Communication solutions for power utilities 1U SHELF TYPE MAS 2 WITH ASYNCHRONOUS PROGRAMMABLE MODEM MAFP Rev 9 January 2018 39 39 Figure 24 Overall dimensions MAS 2...

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