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0049-0101-XXX                                                                       MIU202T – USER GUIDE 

06/29/2018 

Rev. B 

 

 

   Page 15 of 19

 

 
 

      Switch 1 = ON (TxA = 0dBm) 

 

      Switch 3 = ON (RxA = -33dBm) 

 

      Switch 4 = OFF (RTS/CTS = 1 ms) 

 

      Switch 5 = OFF (RTS/CTS = 1 ms) 

 

      Switch 6 = ON (Constant Carrier mode) 

            Switch 7 = OFF (4-Wire) 
 

      Switch 8 = ON (Line Termination = 600 ohms) 

 

      Switch 9 = OFF (Soft Carrier = OFF) 

 
 
 

 

Adjustments: 

 

 

 

 

In a network with high line loss (greater than 16dB) change Switch 3 (RxA) to OFF 

(-43dBm). 

 
 

If there are conditions that can cause cross-talk (TxA leaking into RxA path) set Switch 1 
(TxA) to OFF (-10dBm). 

 
 

Note that noise level should be -50dBm or lower for most FSK operation (signal-to-noise 
ratio of 15dB or higher). 

 
 

 

 

 

Содержание MIU202T

Страница 1: ...0049 0101 XXX MIU202T USER GUIDE 06 29 2018 Rev B Installation Operation Diagnostics MIU202T Industrial Grade Bell 202T Standalone Modem ...

Страница 2: ...0049 0101 XXX MIU202T USER GUIDE 06 29 2018 Rev B Page i Raymar Information Technology Inc 7325 Roseville Road Sacramento CA 95842 800 695 1951 Fax 916 783 1952 ...

Страница 3: ...ice and does not represent a commitment on the part of Raymar Telenetics Raymar Telenetics assumes no responsibility for any inaccuracies that may be contained in this User s Guide Raymar Telenetics makes no commitment to update or keep current the information in this User s Guide and reserves the right to make changes to this User s Guide and or product without notice No part of this manual may b...

Страница 4: ...VERVIEW 1 3 GENERAL PRODUCT SPECIFICATIONS 2 4 MODEM SPECIFICATIONS 2 5 ANALOG LINE SPECIFICATIONS 4 6 ANALOG MICROWAVE INTERFACE 5 7 POWER CONNECTIONS 6 8 SERIAL DATA PORT PIN OUTS 7 9 DIP SWITCH FUNCTIONS 8 10 MODEM CONFIGURATION 10 11 LED INDICATOR 11 12 OUTLINE DRAWING MOUNTING 12 13 DIAGNOSTICS 12 ...

Страница 5: ...bstations and industrial facilities Though functionally similar to commercial modems the MIU202T includes special features that make it particularly well suited for utility and industrial applications Environment The MIU202T has been designed specifically for use in harsh environments In addition to an extended temperature range 40 to 85ºC the MIU202T includes surge shock vibration and safety feat...

Страница 6: ...ts 12VDC 24VDC 125VDC 120VAC 220VAC 65mA 27mA 7 5mA 6 5mA 5 5mA Surge Protection Power Supply 8kVrms Analog Line 3 75kVAC Digital Line ESD 10kV Operating Temperature 40 to 85ºC Operating Humidity 0 to 90 non condensing Storage Temperature 55 to 100ºC 4 MODEM SPECIFICATIONS Modulation Bell202T Modulation Type FSK Synch Async Asynchronous Only Data Rate 0 1200bps Transmit Frequency Mark 1200Hz Space...

Страница 7: ...ing carrier Line Termination Dip Switch Selectable Line Impedance 600 ohms balanced 2 or 4 Wire Configuration Dip Switch Selectable Other Features Receiver Equalization Compromise Equalization Self Test Diagnostics None Local Analog Loopback See Section 13 Local Digital Loopback See Section 13 Remote Analog Loopback See Section 13 Remote Digital Loopback See Section 13 Anti Streaming OFF or 45 Sec...

Страница 8: ...eased lines or metallic lines e g pilot wires The MIU202T will also interface to Power Line Carrier or Microwave radio voice channel networks The MIU202T has an RJ 11 terminated connector The following lists the MIU202T analog interfaces Analog Line Type Conditioned or unconditioned Bell type 3002 2 or 4 wire full duplex voice grade or metallic lines or better Analog Line Specifications Bandwidth ...

Страница 9: ...mO test tone Absolute Delay Option 001 1500 µsec maximum Option 002 1900 µsec maximum Group Delay option 001 600 3200 Hz 1200 µsec maximum 800 2800 Hz 550 µsec maximum 1000 2600 Hz with 180 µsec maximum Linearity 0 3 dB 3 5 dBmO Limiting 7 5 dBmO max 6 5 dBmO typical for 20 dBmO input Crosstalk intelligible 1 KHz test tone at 0 dBmO Inter channel 65 dBmO maximum 80 dBmO typical Intra channel 70 dB...

Страница 10: ...lors shown are for optional Raymar Telenetics cable if ordered 2 Customer supplies cable must be suitable for site environmental conditions 3 Surge protection only guaranteed if ground wire 18 AWG 4 Solidly earthed ground connection required to guarantee surge protection 5 Screw terminals accept 28 to 16 AWG ...

Страница 11: ...0049 0101 XXX MIU202T USER GUIDE 06 29 2018 Rev B Page 7 of 19 8 SERIAL DATA PORT PIN OUTS ...

Страница 12: ...al Level 0 dBm 10 dBm Switch 2 Anti Streaming 45 secs OFF Switch 3 Received Analog RxA Signal Level 33 dBm 43 dBm Switch 4 RTS CTS Delay See Table 2 Switch 5 RTS CTS Delay See Table 2 Switch 6 Switched Constant Carrier Constant Carrier Switched Carrier Follows RTS State Switch 7 2 or 4 Wire Selection 2 Wire 4 Wire Switch 8 Line Termination 600 ohms None Switch 9 Soft Carrier 900 Hz Turn Off ON OFF...

Страница 13: ...NO YES YES NO ON ON ON 50 ms YES NO YES NO ON ON OFF 50 ms NO YES YES YES OFF ON OFF 35 ms NO YES YES NO OFF ON ON 35 ms YES NO YES NO OFF ON ON 35 ms YES NO YES NO OFF ON OFF 35 ms NO YES YES YES ON OFF OFF 12 ms NO YES YES NO ON OFF ON 35 ms YES NO YES NO ON OFF ON 12 ms YES NO YES NO ON OFF OFF 12 ms NO YES NO YES OFF OFF OFF 1 ms NO YES YES NO OFF OFF OFF 12 ms NO YES YES NO OFF OFF ON 1 ms YE...

Страница 14: ...9 4 Wire Point to Point ON ON ON ON 4 Wire Multi Point Master ON ON ON ON 4 Wire Multi Point Slave Rx Term OFF ON ON ON ON ON 4 Wire Multi Point Slave Rx Term ON ON ON ON ON ON ON 2 Wire Point to Point ON ON ON ON ON ON ON 2 Wire Multi Point Master Line Term ON ON ON ON ON ON ON ON 2 Wire Multi Point Slave Line Term ON ON ON ON ON ON ON ON 2 Wire Multi Point Slave Line Term OFF ON ON ON ON ON ON F...

Страница 15: ...0049 0101 XXX MIU202T USER GUIDE 06 29 2018 Rev B Page 11 of 19 11 LED INDICATOR ...

Страница 16: ...tion problems and thereby isolating the problem at the local modem the remote modem or the interconnecting line a LOCAL ANALOG LOOPBACK Figure 2 Requires a loop back cable with a built in circuit for line loss to simulate a typical leased line condition See Figure 3 Connect the loop back cable to the RJ11 connector on the modem under test Set Dip Switches as follows Switch 7 OFF 4 Wire Switch 9 ON...

Страница 17: ... is received at RxD with no data errors Test 2 Transmit Signal Power Receive Levels Set Dip Switch 1 OFF TxA 10 dBm CD will be OFF Change Dip Switch 1 to ON TxA 0 dBm CD should now be ON Test 3 Received Signal Level Set Dip Switch 1 OFF TxA 10 dBm and Dip Switch 3 OFF RxA 43 dBm CD will be ON Run a test message at TxD and verify that the same message is received at RxD with no data errors Test 4 R...

Страница 18: ...Bm Switch 3 ON RxA 33dBm Switch 4 OFF RTS CTS 35 ms Switch 5 ON RTS CTS 35 ms Switch 6 ON Constant Carrier mode Switch 7 OFF 4 wire Switch 8 ON Line Termination 600 ohms Switch 9 ON Soft Carrier Turn Off ON Connect TxD to RxD at the remote modem Transmit a test message from the local modem and confirm that the same message is received back at RxD on the local modem with no data errors d LINE DIAGN...

Страница 19: ...itch 7 OFF 4 Wire Switch 8 ON Line Termination 600 ohms Switch 9 OFF Soft Carrier OFF Adjustments In a network with high line loss greater than 16dB change Switch 3 RxA to OFF 43dBm If there are conditions that can cause cross talk TxA leaking into RxA path set Switch 1 TxA to OFF 10dBm Note that noise level should be 50dBm or lower for most FSK operation signal to noise ratio of 15dB or higher ...

Страница 20: ...0049 0101 XXX MIU202T USER GUIDE 06 29 2018 Rev B Page 16 of 19 ...

Страница 21: ...0049 0101 XXX MIU202T USER GUIDE 06 29 2018 Rev B Page 17 of 19 ...

Страница 22: ...CE OF THE PRODUCT FOR ANY LOSS OF USE LOSS OF TIME INCONVENIENCE COMMERCIAL LOSS LOST PROFITS OR SAVINGS OR OTHER INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THIS RAYMAR PRODUCT TO THE FULL EXTENT SUCH MAY BE DISCLAIMED BY LAW WITHOUT LIMITING THE FOREGOING RAYMAR SHALL HAVE NO LIABILITY FOR ANY DATA STORED IN OR USED WITH THE PRODUCT INCLUDING THE RECOVE...

Страница 23: ...r the serial number a description of the problem being encountered and the cause of the problem if known Please note that prior to authorizing a return a product support specialist may call to verify that the product is properly installed or may ask you to perform tests to ensure that the product has actually failed The product must be properly packed and returned to Raymar Telenetics 7325 Rosevil...

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