Related Manuals for GDI 2070-9D
Summary of Contents for GDI 2070-9D
- Page 1 2070-9D 2070-9A 2070-9B 2070-9E USER’S MANUAL 33.6K SMART MODEM June 11, 2009 PRELIMINARY...
- Page 2 GDI Communications LLC. Recipient further agrees not to incorporate these drawings, specifications or technical information, in whole or in part, in any other product or endeavor.
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Page 3: Table Of Contents
TABLE of CONTENTS GLOSSARY ................................1 GERNERAL DESCRIPTION..........................2 GENERAL CHARACTERISTICS........................3 INDICATORS, CONNECTORS, AND SWITCHES..................5 Dialup Indicators ............................5 RJ45 Termination Table ..........................5 DB9 Termination Table ..........................5 C20 Termination Table ..........................5 96 pin edge connector...........................6 INSTALLATION ..............................7 Dialup Configuration Switches........................7 DISTANCE OR MAXIMUM UNITS PER LINE .....................9 SYSTEMS WITH NO RTS SIGNAL ........................9 SYSTEM PROBLEMS................E RROR... -
Page 4: Glossary
GLOSSARY Private wire – Telco communication hardware that is leased for private use. Anti-Streaming – A function on GDI modems that prevents a Host from SPACE – Signal state of a FSK system transmitting continuously. that represents a logical “0” value DCD –... -
Page 5: Gerneral Description
Page 2 2070-9x User’s Manual GERNERAL DESCRIPTION The 2070-9xx can be factory fitted with a FSK Expansion Card. which is a FSK Private wire Modem.. FSK stands for The 2070-9xx is a 33.6Kbps dial-up Frequency Shift Keying which is a modem in a form factor designed for modulation scheme that Shifts use in a Model 2070 Controller. -
Page 6: General Characteristics
Page 3 2070-9x User’s Manual GENERAL CHARACTERISTICS Data Compression…V.42 bis, MNP 5 Loop Tests….. ITU V.54 loop2 FORM FACTOR (RDL) and Standard 2070 plug in board size: Loop 3 (LAL) 8.375” x 5.69” x 1.592” Data Carrier…….1800 ± 0.5 Hz Temp………..-37 to +74 degrees C. - Page 7 Page 4 2070-9x User’s Manual FSK: Serial Data Rate……..0-19,200 baud. Meets EIA RS-232D and CCITT V.24 electrically CTS Delay .......12 ±2 ms Soft Carrier Turnoff Time 10 ±2ms Receive Squelch ....6.5 ±1ms Carrier Detect Time..8 ±2ms Data Format…Asynchronous, serial by Line interface…..Private Metallic wire 600 Ohm Modulation…….Phase Coherent FSK.
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Page 8: Indicators, Connectors, And Switches
Page 5 2070-9x User’s Manual INDICATORS, CONNECTORS, AND SWITCHES C20 Termination Table Dialup Indicators: Transmit Data Function Function Receive Data Audio In Data Terminal Ready Audio In Data In Data Carrier Detect DCD (TXD) Data Set Ready Audio Data Out Ring Indicator (RXD) +5 VDC... -
Page 9: 96 Pin Edge Connector
Page 6 2070-9x User’s Manual 96 pin edge connector SP1-TXD+ SP1-TXD- SP1-RXD+ SP1-RXD- SP1-RTS+ SP1-RTS- SP1-CTS+ SP1-CTS- SP1-DCD+ SP1-DCD- SP2-TXD+ SP2-TXD- SP2-RXD+ SP2-RXD- SP2-RTS+ SP2-RTS- SP2-CTS+ SP2-CTS- SP2-DCD+ SP2-DCD- DC Gnd C50 EN DC Gnd DC Gnd #1 DC Gnd DC Gnd +12 Serial +5VSerial... -
Page 10: Installation
Page 7 2070-9x User’s Manual INSTALLATION Closed When switch 1 is closed, the DB9 is connected to the controllers Installation of the 2070-9 is relatively SP1 port. simple. It can be installed with the power on provided that the power Switch 2: Default = Closed. - Page 11 Page 8 2070-9x User’s Manual FSK Configuration Switches In the 4-wire full duplex mode of operation, there is no connection between the Transmitter circuit and Switch FUNCTION Pos. the Receiver circuit. In the 2-wire mode, the transmitter output is Full Duplex (ON) connected to the Receiver input.
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Page 12: Distance Or Maximum Units Per Line
Page 9 2070-9x User’s Manual The Anti-Streaming feature is not 3. The number of units on the line. normally activated on a Local/Master 4. The transmitted signal level modem since they are transmitting We can do anything about the length continuously to all of the and quality of the line but we can remotes/slaves. - Page 13 RTS but you have more than one modem on the line, you will have to use a Key On Data device to control the Modem. GDI can supply these devices. Please contact the factory for more information.
- Page 14 Page 11 2070-9x User’s Manual ADJUSTMENTS The only adjustment that should be made to the FSK Expansion modem is the output level. VR2 potentiometer (labeled AMP) is used to make that adjustment. The Audio output must be loaded with 600 Ohms and the output level measured across the 600-Ohm resistor.
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Page 15: Theory Of Operation
LEDs. When the LED is lit, the signal is active. Each status signal is The functionality of the “Programable buffered by an N-Channel MOSFET Logic Device” is “created” by the GDI transistior which provides the engineering staff not by the necessary current for the LED. -
Page 16: Fsk Option
Page 13 2070-9x User’s Manual signal will also have to be above a The ouput signals from SP2 are certain threshold before the Mark directly connected to a 50 pin socket detect circuit will be activated. which the FSK Expansion Board plugs in to. -
Page 17: Block Diagrams
2070-9x User’s Manual Block diagrams Dialup Block Diagram PRELIMINARY... -
Page 18: Fsk Expansion Block Diagram
2070-9x User’s Manual FSK Expansion Block Diagram PRELIMINARY... -
Page 19: Maintenance
2070-9x User’s Manual MAINTENANCE Preventative Maintenance There is no preventative maintenance required or anything that needs to be adjusted for the life of the product. Trouble analysis The model 2070-9xx is a fairly complex Modem with hundreds of parts. This makes this Modem hard to trouble shoot for the average technician with limited experience. -
Page 20: Waveforms
2070-9x User’s Manual Waveforms Signal Characteristic Waveform OSC out Mark Frequency 1200Hz OSC out Space Frequency 2200Hz OSC out Soft Carrier 900Hz Frequency Audio Out Alternating Bit 1720Hz Pattern PRELIMINARY... - Page 21 2070-9x User’s Manual Symmetry CTS Delay 12ms Audio In Soft Carrier Enable Soft Carrier time 10ms Audio Out PRELIMINARY...
- Page 22 2070-9x User’s Manual Recvr. Receiver Squelch Squelch 6.5ms Time Enable Voltage Measurements For DC Isolated Models Measurement tolerance TP13 5vdc ±.2vdc TP11 -5vdc ±.2vdc TP10 +5vdc ±.2vdc For non-Isolated Models Measurement tolerance TP13 12vdc ±.6vdc TP11 -12vdc ±.6vdc TP10 +5vdc ±.2vdc PRELIMINARY...
- Page 23 2070-9x User’s Manual COMMUNICATIONS, L.L.C. TRAFFIC EQUIPMENT MANUFACTURER ♦ SPECIALIZING IN COMMUNICATIONS 280 I-80 WEST EXIT 1 P.O. BOX 1330 VERDI, NEVADA 89439 TELEPHONE: 775-345-8000 FAX: 775-345-8010 PRELIMINARY...