GatesAir Intraplex MA-311 Installation & Operation Manual Download | Manualshive

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Intraplex VF-40 Voice Module

4 – Testing & Troubleshooting

Version 1.11

4-2

GatesAir

Intraplex Products

6.

If you are performing a remote loopback, deactivate the loopback for this channel and activate

the loopback for the next channel to be tested. If you are using a local loopback, leave the

loopback up until all channels have been tested.

7.

Repeat the previous steps for each active channel.

8.

Remove the test equipment and deactivate all loopbacks.

If there is an apparent malfunction, first check that the configuration is appropriate for the

transmission system in use. If you are doing end-to-end testing, check that the transmit and receive

configurations are identical.
Problems may occur at the common equipment or facility level that affect the operation of this

module. The “Troubleshooting” section in your multiplexer operation manual gives system analysis

procedures.

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Summary of Contents for Intraplex MA-311

Page 1: ...GatesAir com Intraplex VF 40 Four Port E M Voice Module Installation Operation Manual VF 40 Voice Module MA 311 Ethernet Module Adapter Version 1 11 Installation and Operation Manual ...

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Page 3: ...hanges in equipment design specifications components or documentation as progress may warrant to improve the performance of the product GatesAir reserves the right without notice to make such changes in equipment design specifications components or documentation as progress may warrant to improve the performance of the product Trademarks AudioLink PLUS HD Link IntraGuide Intraplex NetXpress NetXpr...

Page 4: ... Updated Tables 2 7 and 2 8 for P code changes 2 7 1 2 11 2 13 2 15 Added section for TIA 603C emphasis option 2 8 2 17 2 8 Added warning about hot inserting module adapters 3 2 A 3 1 A 2 Added Figure A 2 and information on M input leads A A 1 1 11 6 24 11 Changed all occurrences of TYPE 143 to TYPE 142 2 7 3 2 2 9 2 10 2 15 3 2 LD Version numbers usually correspond to software releases If the man...

Page 5: ...eration 2 3 2 6 Indicator Lights and Controls 2 4 2 7 Remote Control Interface 2 8 2 7 1 P Codes 2 9 2 7 2 S Codes 2 15 2 8 TIA 603C Emphasis Option 2 17 Section 3 Installation 3 1 3 1 Inspection 3 1 3 2 Configuration 3 1 3 3 Mounting 3 2 Section 4 Testing Troubleshooting 4 1 4 1 Local versus Remote Loopback 4 1 4 2 VF 40 Loopback Setup Procedure 4 1 Section 5 Specifications 5 1 Appendix A MA 311 ...

Page 6: ...1 Figure A 1 50 pin Connector A 1 Figure A 2 M Input Leads A 1 Tables Table 2 1 Configuration Switches 2 6 Table 2 2 Active Channel Selection SW2 Positions 3 4 2 6 Table 2 3 Input Output Level Jumper Settings 2 7 Table 2 4 T1 and E1 Starting Time Slot Selection SW1 Positions 1 5 2 8 Table 2 5 Module Address Setting SW3 2 9 Table 2 6 Remote Configuration Settings P Codes 2 11 Table 2 7 Transmit Cha...

Page 7: ...s full duplex four wire with PCM Pulse Code Modulation coding allowing four voice channels to be carried in four 64 kbps time slots on T1 and other digital communications facilities Each VF 40 module provides high quality voice characteristics The module has extended range input and output signal level adjustments to facilitate interfaces in most four wire applications The VF 40 voice module inclu...

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Page 11: ...factory set input level is 0 dBm referenced to 600 ohms and clipping begins at an input level of 3 0 dBm Switches on the module allow the nominal input level to be set to 16 dBm The control output then passes to the PCM CODEC which converts it to an eight bit digital signal using µ law coding The Field Programmable Gate Array FPGA multiplexes the M Lead signal together with the eight bit output of...

Page 12: ...Receivers FPGA PCM CODEC Level Control 1 2 3 4 5 6 7 8 TONE SP0 TS1 TS0 TERM SIG OFF REMOTE SRVC SELECT TIME SLOT SET SCB ADDRESS LBACK 1 2 3 4 5 6 1 2 3 4 5 6 SELECT TIME SLOT SET SCB ADDRESS 1 2 3 4 5 6 7 8 M Lead Detect E Lead Driver Channel 1 _ _ _ _ _ Chan 2 _ _ Chan 3 _ _ Chan 4 Module Adapter VF 40 Module M A Input M B Input E A Output E B Output Local Loopback Remote Loopback ...

Page 13: ... point system In Figure 2 2 Site 2 has a drop and insert multiplexer whose DI A port is connected to the transmission line to Site 1 and whose DI B port is connected to the transmission line to Site 3 Individual payload channels may connect Sites 1 and 2 1 and 3 or 2 and 3 Note In the drop and insert multiplexer at Site 2 a VF 40 module can be set to transmit and receive through the DI A port towa...

Page 14: ...one green indicator light Figures 2 3 and 2 4 The light indicates Service On when it is on the module is in service Tables 2 1 through 2 5 describe the meaning and usage of the switches and jumpers on the module Figure 2 3 VF 40 Voice Module Front View SERVICE LIGHT SIG OFF TERM TONE TIME SLOT SELECT 1 2 3 4 5 6 LBACK 1 2 3 4 5 6 VF 40 EMP TS1 TS0 REMOTE SRVC ON OFF 7 LBACK Ch 2 Ch 3 Ch 4 8 Ch 1 ...

Page 15: ... Intraplex Products Figure 2 4 VF 40 Voice Module Top View WARNING All modules must be inserted so that the white eject tab is at the bottom of a full size 5 shelf and at the right in a compact 1 shelf SW1 SW3 SW2 SW4 SW6 SW8 SW5 SW7 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 SW10 SW11 SW9 1 2 O N ...

Page 16: ...nnels 1 to 4 SW11 5 TERM UP DOWN Set the module to communicate through the DI B port in a drop and insert multiplexer Section 2 5 Drop and Insert Operation Set the module for use in a terminal multiplexer or to communicate through the DI A port in a drop and insert multiplexer SW11 6 SIG OFF UP DOWN NORMAL Signaling is active Signaling off Transmit Only mode SW11 7 REMOTE UP DOWN Set module for lo...

Page 17: ...dB PAD SW3 1 Ch 2 TX input PAD OFF 0 dBm ON 23 dB PAD SW3 2 Ch 2 Tx input level OFF 0 dBm ON 16 dBm SW4 1 Ch 2 Rx output level OFF 0 dBm ON 7 dBm SW4 2 Ch 2 RX output PAD OFF 0 dBm ON 23 dB PAD SW5 1 Ch 3 TX input PAD OFF 0 dBm ON 23 dB PAD SW5 2 Ch 3 Tx input level OFF 0 dBm ON 16 dBm SW6 1 Ch 3 Rx output level OFF 0 dBm ON 7 dBm SW6 2 Ch 3 RX output PAD OFF 0 dBm ON 23 dB PAD SW7 1 Ch 4 TX input...

Page 18: ...13 D D D U D illegal 29 U D D D U 15 14 D D D D U illegal 30 U D D D D 16 15 D D D D D illegal 31 U UP 0 D DOWN 1 2 7 Remote Control Interface You can control VF 40 modules locally or remotely When controlling the module remotely you can only change certain configuration parameters by the RS 232 remote port on the multiplexer The multiplexer operation manual gives details on using ISiCL the Intrap...

Page 19: ...eter field of a SET command allow the user to set parameters on the module by remote control just like setting the switches on a module under local control There are fourteen P codes for the VF 40 module P1 through P14 Each is a number from 0 to 255 also represented as an eight digit binary number in parentheses The first four P codes P1 through P4 provide remote access to the settings controlled ...

Page 20: ...e to a CONFIG query looks like this OK CHANNEL CARD 4 TYPE 142 UNDER REMOTE CONTROL SRVC ON P01 3 B00000011 P02 0 B00000000 P03 1 B00000001 P04 0 B00000000 P05 128 B10000000 P06 128 B10000000 P07 128 B10000000 P08 128 B10000000 P09 128 B10000000 P10 128 B10000000 P11 128 B10000000 P12 128 B10000000 P13 0 B00000000 P14 0 B00000000 ...

Page 21: ...NAL B 0 0 0 0 0 0 0 0 0 1 Normal local loopback off Local loopback active LOCAL LOOPBACK B 0 0 0 0 0 0 0 0 0 1 Normal Channel 1 remote loopback off Channel 1 remote loopback active CH 1 REMOTE LB B 0 0 0 0 0 0 0 0 0 1 Normal Channel 2 remote loopback off Channel 2 remote loopback active CH 2 REMOTE LB B 0 0 0 0 0 0 0 0 0 1 Normal Channel 3 remote loopback off Channel 3 remote loopback active CH 3 ...

Page 22: ... SP1 Disabled Active 1KHZ B 0 0 0 0 0 0 0 0 Not used B 0 0 0 0 0 0 0 0 0 1 TIA 603 Emphasis Channel 1 remote control only Disabled Active EMP_CH1 B 0 0 0 0 0 0 0 0 0 1 TIA 603 Emphasis Channel 2 remote control only Disabled Active EMP_CH2 P5 B 0 0 0 0 0 0 0 0 0 255 Adjusts the input level for Channel 1 Section 2 8 1 1 Input and Output Level Adjustments CH 1 TX LEVEL P6 B 0 0 0 0 0 0 0 0 0 255 Adju...

Page 23: ...t and output levels for each channel to be adjusted in 0 5 dB increments These adjustments must be made by the remote port using P codes P3 through P10 Each of these P codes can have a decimal value of 0 through 255 A value of 0 is the factory default setting when the P code is 0 the actual level is within 0 5 dB of the nominal Increasing the value toward 255 increases the gain and decreasing the ...

Page 24: ...Intraplex VF 40 Voice Module 2 Functional Description Setup Version 1 11 2 14 GatesAir Intraplex Products Figure 2 6 Transmit Channel Effect of P Code Figure 2 7 Receive Channel Effect of P Code ...

Page 25: ...ory P Code setting is 128 Table 2 8 Receive Channel Suggested P Codes to Achieve Desired dB Gain Gain P Code Gain P Code 6 0 dB 255 0 5 dB 120 5 5 dB 242 1 0 dB 114 5 0 dB 223 1 5 dB 107 4 5 dB 215 2 0 dB 100 4 0 dB 205 2 5 dB 95 3 5 dB 192 3 0 dB 90 3 0 dB 181 3 5 dB 85 2 5 dB 171 4 0 dB 80 2 0 dB 162 4 5 dB 75 1 5 dB 152 5 0 dB 70 1 0 dB 145 5 5 dB 67 0 5 dB 136 6 0 dB 63 0 0 dB 128 MUTE 0 The f...

Page 26: ...dle Signaling is turned on and the EA Lead for Channel 1 is busy CH1_EA S2 B 0 0 0 0 0 0 0 0 0 1 MB Lead for Channel 2 is idle MB Lead for Channel 2 is busy CH2_MB B 0 0 0 0 0 0 0 0 0 1 EB Lead for Channel 2 is idle Signaling is turned on and the EB Lead for Channel 2 is busy CH2_EB B 0 0 0 0 0 0 0 0 0 1 MA Lead for Channel 2 is idle MA Lead for Channel 2 is busy CH2_MA B 0 0 0 0 0 0 0 0 0 1 EA Le...

Page 27: ... EB Lead for Channel 4 is busy CH4_EB B 0 0 0 0 0 0 0 0 0 1 MA Lead for Channel 4 is idle MA Lead for Channel 4 is busy CH4_MA B 0 0 0 0 0 0 0 0 0 1 EA Lead for Channel 4 is idle Signaling is turned on and the EA Lead for Channel 4 is busy CH4_EA S5 B 0 0 0 0 0 0 0 0 0 1 Normal operation Configuration error CERR B 0 0 0 0 0 0 0 0 0 1 Shelf Normal operation Frameloss active FRMLS B 0 0 0 0 0 0 0 0 ...

Page 28: ...A 603C Emphasis Measurement The audio frequency response from 300 Hz to 3000 Hz does not vary more than 1 dB or 3 dB from a true 6 dB per octave pre emphasis characteristic as referenced to the 1000 Hz level The exception to this variation is from 500 Hz to 300 Hz where an additional 6 dB per octave roll off is allowed ...

Page 29: ...associated channel module Similarly to install a new channel module first install the module adapter and then install the module itself 2 Set for use in a terminal or drop and insert multiplexer using the TERM switch SW2 position 5 UP to communicate through the DI B port in a drop and insert multiplexer DOWN in a terminal multiplexer or to communicate through the DI A port in a drop and insert mul...

Page 30: ...NEL CARD 4 TYPE 142 VF 40 module is in physical slot 4 UNDER REMOTE CONTROL Remote control is on SRVC OFF Service is off P01 3 B00000011 Starting time slot 12 P02 0 B00000000 Reserved P03 1 B00000001 Terminal operation all loopbacks off P04 0 B00000000 Test tone off four channels active signaling on P05 128 B10000000 Ch 1 Tx level control set to 0 dB P06 128 B10000000 Ch 1 Rx level control set to ...

Page 31: ...ded and sent back to the originating end T1 or other aggregate circuit VF Port 1 Local Loopback all four channels Location 1 Location 2 VF Port 2 VF Port 3 VF Port 4 PCM Coder Decoder VF Port 1 VF Port 2 VF Port 3 VF Port 4 PCM Coder Decoder Remote Loopback each channel separately Figure 4 1 Local versus Remote Loopback 4 2 VF 40 Loopback Setup Procedure 1 Activate the desired loopback using P cod...

Page 32: ...ed 7 Repeat the previous steps for each active channel 8 Remove the test equipment and deactivate all loopbacks If there is an apparent malfunction first check that the configuration is appropriate for the transmission system in use If you are doing end to end testing check that the transmit and receive configurations are identical Problems may occur at the common equipment or facility level that ...

Page 33: ...B of nominal at 1004Hz 0 dBm 7 dBm or 16 dBm Independently jumper selectable for input and output of each voice channel 3dB greater than the selected nominal input or output level Adjustment steps 5dB Adjustment range 6dB to 6dB Available by remote control only Balanced 600 ohms Less than 26 dBrnC0 1004Hz input 0 to 30 dBm greater than 33dB in C message weighting Signaling Contact Closure E M Sign...

Page 34: ...ting time slot Status and Diagnostics Indicator Lights Loopbacks Green light indicates Service On Yellow light indicates loopback state Local loopback Simultaneous loopback of all 4 voice channels for installation verification Remote loopback Individual loopback of each voice channel for full circuit test Physical and Environmental Nominal Power Consumption Temperature Humidity Less than 4 0 watts...

Page 35: ...MA 311 Module Adapter Signal Pin Assignment Ch 1 Ch 2 Ch 3 Ch 4 Input Ring 1 7 13 19 Input Tip 26 32 38 44 Output Ring 2 8 14 20 Output Tip 27 33 39 45 M_A Lead 3 9 15 21 M_B Lead 28 34 40 46 E_A Lead 5 11 17 23 E_A Normally Open 4 10 16 22 E_A Normally Closed 29 35 41 47 E_B Lead 30 36 42 48 E_B Normally Open 6 12 18 24 E_B Normally Closed 31 37 43 49 Pins 25 and 50 are signal ground The M input ...

Page 36: ...er while the system is turned on has power first remove the associated channel module Similarly to install a new channel module first install the module adapter and then install the module itself To install the MA 311 module adapter perform these steps 1 At the rear of the chassis insert the MA 311 into the same slot position in which the VF 40 module has been installed 2 Once the module adapter i...

Page 37: ...No header here GatesAir A 3 Intraplex Products This page is left blank intentionally ...

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