Patton electronic 2701/B Manual Do Utilizador
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CONTENTS
Service .......................................................................................... 5
Switch SW1-1 through SW1-5...................................................... 8
SW1-6 and SW1-7 Clock Modes.................................................. 9
SW1-8: Enable/Disable Loop Tests from DTE ........................... 10
Switch SW2-1 Line Coding: HDB3 (default) ............................... 10
Switch SW2-2: CRC-4 Multiframe .............................................. 11
Switch SW2-3 Data Inversion..................................................... 11
Switch SW2-4: Remote Digital Loopback Type.......................... 12
Switch SW2-5 Front Panel Switches .......................................... 12
Switch SW2-6: V.54 Response Disabled (default) ..................... 12
SW1-6 and SW1-7 Clock Modes.................................................. 9
SW1-8: Enable/Disable Loop Tests from DTE ........................... 10
Switch SW2-1 Line Coding: HDB3 (default) ............................... 10
Switch SW2-2: CRC-4 Multiframe .............................................. 11
Switch SW2-3 Data Inversion..................................................... 11
Switch SW2-4: Remote Digital Loopback Type.......................... 12
Switch SW2-5 Front Panel Switches .......................................... 12
Switch SW2-6: V.54 Response Disabled (default) ..................... 12
Connecting to a “DTE” Device.................................................... 14
Connecting to a “DCE” Device ................................................... 15
Configuring the X.21 Interface (2701/D)..................................... 15
Connecting to a “DCE” Device ................................................... 15
Configuring the X.21 Interface (2701/D)..................................... 15
Universal AC Power (100–240 VAC).......................................... 15
DC Power ................................................................................... 16
DC Power ................................................................................... 16
Operating Local Loopback (LL) .................................................. 18
Operating Remote Digital Loopback (RL)................................... 19
CSU Loop ................................................................................... 20
Using the V.52 (BER) Test Pattern Generator ........................... 20
Operating Remote Digital Loopback (RL)................................... 19
CSU Loop ................................................................................... 20
Using the V.52 (BER) Test Pattern Generator ........................... 20