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MIU202T Installation, Operation & Diagnostics     Edition:  April 4, 1998          Page 19

 

 

(c)  REMOTE DIGITAL LOOPBACK – 4/Wire Network (Figure 5) 

 

Configure both the local and remote modems as follows: 
 
Switch 1 = ON (TxA = 0dBm) 
Switch 3 = ON (RxA = -33dBm) 
Switch 4 = OFF (RTS/CTS = 35ms) 
Switch 5 = ON   (RTS/CTS = 35ms) 
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. 

Содержание MIU/PowerPort 202T

Страница 1: ...Document No 49 0002 011 Rev A Installation Operation Diagnostics for the MIU202T Industrial Grade Bell 202T Standalone Modem ...

Страница 2: ...Document No 49 0002 011 Rev A Telenetics Corporation ARC Electronics 800 926 0226 ...

Страница 3: ...UCT OVERVIEW 3 3 GENERAL PRODUCT SPECIFICATIONS 4 4 MODEM SPECIFICATIONS 5 5 ANALOG LINE SPECIFICATIONS 7 6 ANALOG MICROWAVE INTERFACE 8 7 POWER CONNECTIONS 10 8 SERIAL DATA PORT PIN OUT 11 9 DIP SWITCH FUNCTIONS 12 10 MODEM CONFIGURATION 14 11 LED INDICATOR 15 12 OUTLINE DRAWING MOUNTING 16 13 DIAGNOSTICS 17 ...

Страница 4: ...MIU202T Installation Operation Diagnostics Edition April 4 1998 Page 2 1 STANDARDS Meets FCC Rules Part J Subpart 15 Class A for radiated emissions ...

Страница 5: ...hough 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 85º C the MIU202T includes surge shock vibration and safety features superior to those of convention...

Страница 6: ...upply Standard Model 40 to 270VDC 40 to 270VAC 50 60Hz LV Model Suffix LV 9 to 36VDC Current Requirements 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 85 deg C Operating Humidity 0 to 90 non condensing Storage Temperature 55 to 100 deg C ...

Страница 7: ...pression None Data Modulation Connectivity Using 16ms Polling Test 99 999 or better at 37dBm 99 5 or better at 40dBm 95 or better at 43dBm Serial Formats and Flow Control Asynchronous and RTS CTS flow control Analog Interface Tx Output Level 0 dBm or 10 dBm Rx Sensitivity 43dBm or 33dBm 43dBm for constant carrier 40dBm for polling carrier Line Termination Dip Switch Selectable Line Impedance 600 o...

Страница 8: ...ee Section 13 Remote Analog Loopback See Section 13 Remote Digital Loopback See Section 13 Anti Streaming OFF or 45 Seconds 5 sec RTS CTS delay 1ms 12ms 35ms or 50ms 5 Note Soft Carrier will effect RTS CTS delay time see Dip Switch Settings Section 8 Constant Carrier Switch Selectable ON or OFF Soft Carrier Turn Off 20ms of 900Hz after RTS is turned Off Carrier Turn ON OFF 8ms 0 5ms Dip Switch Sel...

Страница 9: ...will also interface to Power Line Carrier or Microwave radio voice channel networks The MIU202T has an RJ 11terminated connector The following lists the MIU202T analog interfaces Analog Line Type Conditioned or unconditioned Bell type3002 2 or 4 wire full duplex voice grade or metallic lines or better Analog Line Specifications Bandwidth 300 Hz to 3400 Hz 3dB Impedance 600 900 ohms balanced Freque...

Страница 10: ...h Level Stability w o regulation 0 5 dB 6 months Harmonic Distortion 1 max 0 3 typical 1Khz 0 dBmO 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 350 µsec maximum Group Delay option 002 600 3200 Hz with 1000 µsec maximum 800 2800 Hz with 400 µsec maximum 1000 2600 Hz w...

Страница 11: ...hannel 28dBrnc0 maximum 24 455B weighted noise at 0 dBmO dBrnc0 typical Intra channel 28 dBrnc0 maximum 18 dBrnc0 typical 1KHz test tone at 0 dBmO Out of Band Signalling Frequency 3825 Hz Level 20 dBmO Pulse speed 30 to 80 break 8 to 14 pps Pulse distortion 3 dB level var 3 max Signaling leak 60dBmO maximum ...

Страница 12: ...MIU202T Installation Operation Diagnostics Edition April 4 1998 Page 10 7 POWER CONNECTIONS ...

Страница 13: ...MIU202T Installation Operation Diagnostics Edition April 4 1998 Page 11 8 SERIAL DATA PORT PIN OUTS ...

Страница 14: ...nal 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 22kohms Switch 9 Soft Carrier 900Hz Turn Of...

Страница 15: ...50 ms 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 55 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 3...

Страница 16: ...7 8 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 ...

Страница 17: ...MIU202T Installation Operation Diagnostics Edition April 4 1998 Page 15 11 LED INDICATOR ...

Страница 18: ...MIU202T Installation Operation Diagnostics Edition April 4 1998 Page 16 12 OUTLINE DRAWING MOUNTING ...

Страница 19: ...he RJ11 connector on the modem under test Set Dip Switches as follows Switch 7 OFF 4 Wire Switch 9 ON Soft Carrier Turn Off Enabled Switch 1 ON Transmit TxA Signal Level 0dBm Switch 3 ON Receive RxA Signal Level 33dBm Switch 6 OFF Switched Carrier Switch 4 5 ON RTS CTS Delay 50ms Test 1 RTS CTS Analog Control Set RTS ON and check that CD Carrier Detect turns ON Turn RTS OFF and ensure that CD turn...

Страница 20: ...ious RTS CTS delay times and with soft carrier ON and OFF b LOCAL DIGITAL LOOPBACK 4 Wire Network Figure 4 On the modem under test connect TxD to RxD Switch 1 ON TxA 0dBm Switch 3 ON RxA 33dBm Switch 4 OFF RTS CTS 35ms Switch 5 ON RTS CTS 35ms Switch 6 ON Constant Carrier mode Switch 7 OFF 4 Wire Switch 8 ON Line Termination 600 ohms Switch 9 ON Soft Carrier ON Transmit a test message from a remot...

Страница 21: ...xA 0dBm Switch 3 ON RxA 33dBm Switch 4 OFF RTS CTS 35ms Switch 5 ON RTS CTS 35ms 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 ...

Страница 22: ...al modem configuration for 4 wire Multi Point system Switch 1 ON TxA 0dBm Switch 3 ON RxA 33dBm Switch 4 OFF RTS CTS 1ms Switch 5 OFF RTS CTS 1ms 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 cau...

Страница 23: ...MIU202T Installation Operation Diagnostics Edition April 4 1998 Page 21 ...

Страница 24: ...MIU202T Installation Operation Diagnostics Edition April 4 1998 Page 22 ...

Страница 25: ...MIU202T Installation Operation Diagnostics Edition April 4 1998 Page 23 ...

Страница 26: ...MIU202T Installation Operation Diagnostics Edition April 4 1998 Page 24 NOTES ...

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