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Tests

Analog Loopback (ANALOOP)

4-2

DataComm V.34 PL Modem

060R115-000

Installation and Operation

Issue 1

Analog Loopback (ANALOOP)

The Analog Loopback (AL) test mode, illustrated below, is provided to isolate problems in the
modem operation and the DTE interface. Specifically, AL tests modem modulator/demodulator
operation, DTE receive/transmit operation, and DTE interface operation.

Table 4-1

Analog Loopback

Step

Front Panel

1.

To start the test, press AL.

2.

The modem flashes the TM LED and displays
the test name (LL) while it is setting up the
test, then lights the TM LED and decimal
point three while the test is running.

3.

Enter test data at the DTE. Compare the data
that was entered at the DTE with the data that
is looped back and displayed by the DTE. If
errors occur frequently, a problem may exist
in the modem, the DTE, or the DTE-to-
modem connection. Refer to

Figure 4-1

, Fault

Isolation Sequence.

4.

To end the test, press AL, RDL or DL.

Modem transmitter

Modem receiver

Send data

Received data

DTE

Communications line

Local loopback

V.34 PL

TR

SD RD MR

RS CS CO GD TM ALM

OH

AL

ST RDL DL SEL

RST

ADV

1. To start the test, press AL.
2. TM flashes and the test name (LL) appears on the LCD while it is setting up the test, then TM lights
and decimal point three appears while the test is running.

3. Enter test data on DTE. Compare this data with the data
that was looped back and displayed on the DTE.
4. To end the test, press AL.

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Содержание V.34 PL

Страница 1: ...DataComm V 34 PL Modem Installation and Operation 060R115 000 Issue 1 ...

Страница 2: ......

Страница 3: ...060R115 000 Issue 1 DataComm V 34 PL Modem Installation and Operation ...

Страница 4: ...Park Road Extension Middlebury Connecticut USA 06762 1299 Telephone 1 203 758 1811 Trademarks All brand or product names are trademarks or registered trademarks of their respective companies or organizations Documentation Related Publications A listing of related user manuals is provided below In addition to the hardware and software manuals always read the software System Release Notes supplied w...

Страница 5: ...neral DataComm if you require updated information for this or any other General DataComm product General DataComm Inc Park Road Extension Middlebury Connecticut USA 06762 1299 Tel 1 203 758 1811 Toll Free 1 800 794 8246 Manual Organization The online web based manual uses active areas which allow you to navigate through portions of the manual by clicking on any blue text This manual is divided int...

Страница 6: ...es show the symbols and definitions of CAUTION WARNING and DANGER as they are used in this manual CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor to moderate injury It may also be used to alert against unsafe practices WARNING indicates an imminently hazardous situation which if not avoided could result in death or serious injury DANGER indicates an imm...

Страница 7: ...electrical storm Antistatic Precautions Electrostatic discharge ESD results from the buildup of static electricity and can cause computer components to fail Electrostatic discharge occurs when a person whose body contains a static buildup touches a computer component The Innovx 553 may contain static sensitive devices that are easily damaged Proper handling grounding and precautionary ESD measures...

Страница 8: ...rvices World Headquarters 6 Rubber Avenue Telephones Faxes Naugatuck Connecticut 06770 USA 1 800 243 1030 1 203 723 5012 1 888 248 4825 1 203 729 7611 http www vitalnetsvc com 1 203 729 2461 VITAL Network Services Regional Sales and Service Offices North American Region Office 6 Rubber Avenue Naugatuck Connecticut 06770 USA Telephones 1 800 243 1030 1 888 248 4825 1 203 729 2461 1 800 361 2552 Fre...

Страница 9: ...AC0 FAC3 Carrier CA S Simulated Control Carrier V 13 FAC0 FAC3 r Real Constant RTS CTS Delay dE 0 0ms 15 15 ms FAC0 FAC3 Transmit Levels tL 0 dBm to 15 dBm 9 dBm FAC0 FAC3 Terminal Test Control tC d Disabled E Enabled FAC0 FAC3 Front Panel Test Duration FP I Infinite 10 10 minutes FAC0 FAC3 Parity Pr En Even SP Space Od Odd Ar Mark At Auto FAC0 FAC3 Notes Defaults shown in Bold for FAC0 through FA...

Страница 10: ......

Страница 11: ...odem Features 1 1 Diagnostics 1 2 Equipment List 1 2 Chapter 2 Installation Unpacking Your Modem 2 1 Option Jumpers 2 1 DTE Interface Cards 2 3 Installation Procedure 2 3 Enclosure Shelf Installation 2 3 Modem Installation 2 3 Electrical Connections 2 3 DTE Cables 2 7 Verifying Your Connections 2 7 Chapter 3 Operation Operating Procedures 3 3 Status 3 3 Configuration 3 4 Private Line Operation FAC...

Страница 12: ...tallation and Operation Issue 1 Table of Contents Chapter 4 Tests Analog Loopback ANALOOP 4 2 Analog Loopback with Self Test 4 3 Digital Loopback 4 4 Remote Digital Loopback 4 5 Remote Digital Loopback with Self Test 4 7 End to End Self Test 4 9 ...

Страница 13: ... Shelf The DataComm V 34 PL modem is available in a variety of models Table 1 1 lists the part numbers for the DataComm V 34 PL s standard and optional equipment DataComm V 34 PL Modem Features Integral synchronous asynchronous operation Synchronous DTE rates 2 4 4 8 and 9 6 kbps Asynchronous DTE rates 1 2 refer to note above 2 4 4 8 and 9 6 kbps 2 or 4 wire private line operation with selectable ...

Страница 14: ...tored through the front panel display and LEDs Equipment List Table 1 1 Equipment List Description Part No DataComm V 34 PL Printed Circuit pc Cards DataComm V 34 PL rackmount pc card with TIA EIA 232 F DTE interface 060P014 021 DataComm V 34 PL standalone 060A014 021 Rackmount DataComm Shelves Model DS 1 117 V ac 010B015 001 Model DS 5NR dc nonredundant power supply 010M011 002 Model DS 5R dc red...

Страница 15: ...straight through DB25 DB25 25 pins 028H511 0xx DTE cable male to male straight through DB25 DB25 25 pins 028H502 0xx Private line cable 8 pin modular to lugs 024H122 xxx Private line cable model D25S cut leads 023H101 xxx 8 pin modular to 8 pin modular S T 830 028 807 Table 1 1 Equipment List Continued Description Part No Sheet 2 of 2 ...

Страница 16: ...Introduction Equipment List 1 4 DataComm V 34 PL Modem 060R115 000 Installation and Operation Issue 1 ...

Страница 17: ...ur Modem The unit is shipped enclosed in a box and protected by packing material Inspect the unit when you receive it Notify the shipper of any damage immediately Keep the box and packing material to use if you ever need to reship the unit Option Jumpers The DataComm V 34 PL has four factory set option jumpers Verify that they are set as shown in Figure 2 1 and described in Table 2 1 ...

Страница 18: ...Line J1 R T R T RX 4WPL TX 2WPL RL1 TB1 OPEN SEP X4 COM X7 1 2 12 11 X6 1 2 12 11 SN MIMIC PRPC 4W PL SN 4WPL X8 1 2 12 11 NOTE Refer to Table 2 1 X11 600 900 X5 DIS EN X14 1 3 XYG V 34 PL Basecard F1 F2 NOTE The built in CCITT V 24 V 28 ISO 2110 TIA EIA 232 F interface does not use a DTE interface card MP MC X15 BDTEST Not Used For DataComm Shelf installation only ...

Страница 19: ...e enclosure or shelf To install the DataComm V 34 PL 1 Insert the modem into its slot with the GDC logo on top or to the right then slide it in until it makes contact 2 Pull down the ejector tab if provided and firmly push the modem in until it seats in the rear connectors Electrical Connections Connections to the DataComm V 34 PL are dependent on the enclosure or shelf in which it is installed Se...

Страница 20: ...taComm V 34PL in DE 1 Enclosure Top View TB1 T R TX 2W PL T R RX 4W PL red grn blk yel grn red blk yel 4 Wire line transmit pair or 2 Wire line transmit receive pair 4 Wire line receive pair GDC D25S Cable 023H101 010 10 ft or 023H101 020 20 ft with customer furnished lugs Customer Furnished Cable Assembly To Business Equipment 25 Pin Male Private Line Cable Access Hole ...

Страница 21: ...hed DataComm USS Universal System Shelf Connections for Mod No DC 1 2 BP are under the plastic cover There are four terminal blocks one for each card in quadrant T T R R PC DT PR DR M TEK5 MIC TEK6 Strip ends of cable and secure in block with X6 jumper installed Cable Options For Terminal Strip 023H101 xxx no connectors 023H122 xxx lugs to 8 pin JM8 T 2 4 Wire R 2 4 Wire DT 4 Wire DR 4 Wire RJ45 1...

Страница 22: ...e 50 Pin Connector Private Line Option X6 Line 26 T 1 9 1 R 27 T1 2 R1 28 not used 3 not used 29 T 2 10 4 R 30 T1 5 R1 31 not used 6 not used 32 T 3 11 7 R 33 T1 8 R1 34 not used 9 not used 3 11 35 T 4 12 10 R 36 T1 11 R1 37 not used 12 not used 38 T 5 13 13 R 39 T1 14 R1 40 not used 15 not used 41 T 6 14 16 R 42 T1 17 R1 43 not used 18 not used 44 T 7 15 Sheet 1 of 2 ...

Страница 23: ...ed properly see if the display on the front panel is flashing decimal point four refer to Chapter 3 Operation for front panel operation If not reset the modem If decimal point four still does not flash then either the power supply is not connected properly or the modem is not functioning 19 R 45 T1 20 R1 46 not used 21 not used 47 T 8 16 22 R 48 T1 23 R1 49 not used 24 not used 50 UNASSIGNED 25 UN...

Страница 24: ...Installation Verifying Your Connections 2 8 DataComm V 34 PL Modem 060R115 000 Installation and Operation Issue 1 ...

Страница 25: ...3 Local Loop or ANALOOP Can be used before ST for CCITT V 54 Loop 3 with Self Test Local Loop Self Test or ANALOOP Self Test ST Starts End to End Self Test Use AL RDL or DL to stop the test Can be used after AL for CCITT V 54 Loop 3 with Self Test Can be used after RDL for CCITT V 54 Loop 2 with Self Test ADV Advances the display to the next configuration selection See Front Panel Configuration Pr...

Страница 26: ...for data communications Flashing The modems are handshaking RS Request to Send On The DTE has turned On DTE interface pin 4 or RTS is On indicating that the DTE is requesting the modem for data transmission Off Pin 4 is Off CS Clear to Send On The modem has turned On DTE interface pin 5 or CTS is On indicating it is ready to transmit data Off The modem has turned Off pin 5 indicating it is not rea...

Страница 27: ...plays the new speed for two seconds Note The screen illustrations below are for a modem mounted in a DataComm Enclosure When the modem is rackmounted the screen is turned on end DataComm Encl Rackmount Note When the modem is in data mode The MR and GD LED are ON along with a flashing decimal point at the right side of the screen When the modem is in idle mode the MR and GD LED is OFF along with a ...

Страница 28: ...hose the appropriate factory fixed default followed by the appropriate options The Main Profile Menu is shown below To enter configuration mode press SEL then press ADV within two seconds The modem briefly displays the last profile saved or selected from the front panel The example illustrates the display for FACtory fixed profile 0 Once in configuration mode there is a slight delay between the sw...

Страница 29: ... SEL button at this point will set that option to the currently displayed selection and change the currently running configuration to this selection then advance to the next configuration option 4 To save the changed options press the RST button This saves the options into the previously selected Usr or FAC Profile and sets this profile to the modem s power up profile If a factory default for exam...

Страница 30: ...rt 24 2400 bps 48 4800 bps 96 9600 bps FAC0 FAC3 Carrier CA S Simulated Control Carrier V 13 FAC0 FAC3 r Real Constant RTS CTS Delay dE 0 0ms 15 15 ms FAC0 FAC3 Transmit Levels tL 0 dBm to 15 dBm 9 dBm FAC0 FAC3 Terminal Test Control tC d Disabled E Enabled FAC0 FAC3 Front Panel Test Duration FP I Infinite 10 10 minutes FAC0 FAC3 Parity Pr En Even SP Space Od Odd Ar Mark At Auto FAC0 FAC3 Notes De...

Страница 31: ...4 PL modem is in data mode while it has a telephone line connection to another modem or is in the process of establishing a connection In Data Mode the modem transmits all the data it receives from the DTE over the phone line In data mode the modem can operate either asynchronously or synchronously Each telephone line connection private line between two modems in data mode begins with a handshakin...

Страница 32: ... of the following three clock sources to transmit synchronous data Internal transmit clock generated by the DataComm V 34 PL modem External transmit clock signal generated by the DTE is passed to the modem along with data Receiver transmit clock derived by the local modem from the data it is receiving from the remote modem also called wrap timing The preferred clock source varies for different com...

Страница 33: ...s the following steps outline how to configure the modems 1 Configure both modems for the type of communications they are intended to perform 2 Configure the DataComm V 34 PL modem as the Originate modem selecting FAC0 FAC2 3 Again use the RST button to permanently store the current configurations for both modems Testing the Modem Chapter 6 describes basic diagnostics Diagnostics Note It is recomm...

Страница 34: ...odem displays 2 345 To stop the test press AL RDL or DL Setup Running To start the test press AL The modem flashes the TM LED and displays the test name while it is setting up the test then lights the TM LED and lights decimal point three while the test is running To stop the test press AL RDL or DL Setup Running To start the test press AL then press ST The modem flashes the TM LED and displays th...

Страница 35: ...t press RDL The modem flashes the TM LED and displays the test name while it is setting up the test then lights the TM LED and lights decimal point two while the test is running To stop the test press AL RDL or DL If the remote modem initiated the test the local modem lights decimal points three and four while the test is running Setup Running Local Running Remote ...

Страница 36: ...Operation Operating Procedures 3 12 DataComm V 34 PL Modem 060R115 000 Installation and Operation Issue 1 ...

Страница 37: ... a modem is in Slave RDL it will ignore all requests other than AL c If an MRDL request does not get a response from the Slave modem at 2400 bps the Master will drop the line PASS OR FAIL PASS FAIL PASS OR FAIL PASS FAIL PASS OR FAIL PASS FAIL PASS OR FAIL PASS FAIL PASS OR FAIL PASS FAIL PERFORM ANALOG LOOPBACK WITH SELF TEST REMOTE MODEM PROBLEM START PERFORM ANALOG LOOPBACK COMMUNICATION LINE P...

Страница 38: ...is running 3 Enter test data at the DTE Compare the data that was entered at the DTE with the data that is looped back and displayed by the DTE If errors occur frequently a problem may exist in the modem the DTE or the DTE to modem connection Refer to Figure 4 1 Fault Isolation Sequence 4 To end the test press AL RDL or DL Modem transmitter Modem receiver Send data Received data DTE Communications...

Страница 39: ...names LL and ST while it is setting up the test then lights the TM LED and displays four digits of the error count 0000 to 9999 while the test is running It indicates larger numbers by lighting decimal point one and displaying the four least significant digits of the actual count for example the actual error count is 12345 but the modem displays 2 345 3 To end the test press AL RDL or DL Modem tra...

Страница 40: ...d decimal point one while the test is running 4 Direct the remote attendant to enter data at the remote DTE then compare it with the data that is looped back and displayed by the DTE If errors occur frequently a problem may exist in the local or remote modems the remote DTE the remote DTE to modem connection or the communication line Refer to Figure 4 1 Fault Isolation Sequence 5 To end the test p...

Страница 41: ...M LED and decimal point two while the test is running If the remote modem initiated the test the local modem lights decimal points three and four while the test is running Modem transmitter DTE Communications line DTE LOCAL MODEM REMOTE MODEM Modem receiver Modem receiver Modem transmitter For the remote loopback test the remote DTE or terminal is disconnected Send data Received data Remote loopba...

Страница 42: ... that is looped back and displayed by the DTE If errors occur frequently a problem may exist in the local or remote modems local DTE local DTE to modem connection or the communication line Refer to Figure 4 1 Fault Isolation Sequence 6 To end the test press AL RDL or DL Note CTS at the remote modem will drop low during the test Table 4 4 Remote Digital Loopback Continued Step Front Panel ...

Страница 43: ... with Self Test Step Front Panel 1 Establish data communications with a remote modem 2 Check with the remote attendant that the remote modem will accept Remote Digital Loopback commands 3 To start the test press RDL then press ST Modem transmitter DTE Communications line Remote loopback DTE LOCAL MODEM REMOTE MODEM Modem receiver Modem receiver Modem transmitter Self test pattern receiver Self tes...

Страница 44: ... test then lights the TM LED and displays four digits of the error count 0000 to 9999 while the test is running It indicates larger numbers by lighting decimal point one and displaying the four least significant digits of the actual count for example the actual er ror count is 12345 but the modem displays 2 345 5 To end the test press AL RDL or DL Table 4 5 Remote Digital Loopback with Self Test S...

Страница 45: ...ile it is setting up the test then lights the TM LED and displays four digits of the error count 0000 to 9999 while the test is running It indicates larger numbers by lighting decimal point one and displaying the four least significant digits of the actual count for example the actual error count is 12345 but the modem displays 2 345 3 To end the test press AL RDL or DL Modem transmitter DTE Commu...

Страница 46: ...Tests End to End Self Test 4 10 DataComm V 34 PL Modem 060R115 000 Installation and Operation Issue 1 ...

Страница 47: ...TU T V 34 synchronous asynchronous 2400 bps ITU T V 34 synchronous asynchronous Data Format Bit synchronous selectable 9 or 10 bits per character Transmit Clock Internal External or Receive Wrap Compatibility ITU T V 34 Operating Mode Private line two wire or four wire Answer Tone ITU T V 34 as specified by ITU T Note Receiver performance in ITU T V 34 may be degraded when transmitting above 6 dBm...

Страница 48: ...d EIA TIA 232 E ITU T V 24 V 28 ISO 2110 Optional EIA TIA 530 A ITU T V 10 V 11 V 24 ISO 2110 Amendment 1 V 35 ITU T V 24 V 28 V 35 ISO 2593 V 36 requires a special optional cable Line Requirements Private Line Two wire or four wire Line Connection Private Line 8 position modular jack US RJ45 Line Equalization Automatic Adaptive Connection Options One second Line Break Holdover in four wire privat...

Страница 49: ...34PLModem A 3 Issue 1 Installation and Operation Temperature Operating 0 to 50 C 32 to 122 F Non operating 40 to 70 C 40 to 158 F Humidity operating Up to 95 humidity non condensing Altitude operating 0 m to 3 047 m 0 to 10 000 ft Item Specification ...

Страница 50: ...Technical Specifications A 4 DataComm V 34 PL Modem 060R115 000 Installation and Operation Issue 1 ...

Страница 51: ...ady to transfer data 6 CC 107 DSR From DCE Data Set Ready Signals on this circuit indicate whether the DCE is ready to operate The On condition indicates that the signal converter or similar equipment is connected to the line and that the DCE is ready to exchange further control signals with the DTE to initiate transfer of data The Off condition indicates that the DCE is not ready to operate 7 AB ...

Страница 52: ...r it is ready to transmit or receive data The Off condition causes the DCE to remove the signal conversion or similar equipment from the line 21 2 5 140 RLE To DCE Remote Digital loopback The On condition in this circuit will initiate a Remote Digital Loopback test 22 CE 125 RI From DCE Ring Indicator The On condition of this circuit indicates that a ringing signal is being received on the communi...

Страница 53: ...ables 2 7 DTE Interface Jumpers 2 3 E Electrical Connections 2 3 Enclosure Shelf Installation 2 3 End to End Self Test 4 9 F Figures Analog Loopback 4 2 Analog Loopback with Self Test 4 4 Fault Isolation Sequence 4 1 Front Panel 3 1 Four wire Selection 3 7 H Handshaking Automatic 3 9 Manual 3 9 I Installation Procedure 2 3 L Loopback with Self Test 4 3 M Modem Installation 2 3 O Synchronous Operat...

Страница 54: ...0 Installation and Operation Issue 1 Index Transmit Level 3 9 Two wire Selection 3 7 U Unpacking Your Modem 2 1 V V 34 PL Connections in DataComm and DataComm USS Shelf 2 5 V 34 PL in Standalone Enclosure 2 4 Verifying Your Connections 2 7 ...

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