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Table of Contents
Related Manuals for Intellisystem IT-7304-PC
Summary of Contents for Intellisystem IT-7304-PC
- Page 1 IT-7304-PC V.35 Optic Fiber Modem User Manual...
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Page 2: Table Of Contents
4.2 Front/Rear panels of the stand-alone device: ................3 4.3 Front/Rear panels of Rack-mountable casing: ................5 5. IT-7304-PC Application ..........................6 5.1 Definition of signal lines at V.35 interface ..................6 5.1.1 Distribution diagram of guiding feet on M34 cored jack ............6 5.1.2 Definition of signal lines at V.35 interface ................ -
Page 3: Introduction
1. Introduction IT-7304-PC is a high-performance V.35 optic fiber modem developed by using a dedicated integrated circuit. It is to modulate an N×64K V.35 data signal directly over single- or multi-mode optic fiber for a transmission via optic cable line. At another end of the optic cable, optical signal is demodulated into a V.35 data signal. -
Page 4: Description On Installation And Panels
After the equipment is unpacked, a check shall be done for the completeness. If any part is found missing, please immediately contact our representative offices or agents. Complete packing shall include the following items (for an independent product): One set of V.35 Fiber Modem IT-7304-PC One V.35 Fiber Modem Operation Manual ... - Page 5 If this lamp is constantly lightening, it indicates that pseudo-random code passes the test. Rear panel： Rear Panel of IT-7304-PC/AC 220V AC： AC power jack. OFF ON： Power switch. When the ON button is pressed down, the power supply is turned V.35: V.35 interface, with a M34 cored jack.
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Page 6: Front/Rear Panels Of Rack-Mountable Casing
IT-7304-PC bottom coded switch： Bottom Coded Switch After time slot 0 is valid, other coded switches in whatever positions are all valid. Select the number of time slots according to the expected rate. Normally for an independent type, a time slot setting of automatic tracking Central Site module is selected. Coded switches of plate-clip time slot correspond to S1, S2, S3 and S4. -
Page 7: 7304-Pc Application
ON OFF：power switch +5V： 5V main power supply indicator lamp +12V： 12V fan power supply indicator lamp 5. IT-7304-PC Application 5.1 Definition of signal lines at V.35 interface 5.1.1 Distribution diagram of guiding feet on M34 cored jack Distribution diagram of guiding feet on M34 cored jack 5.1.2 Definition of signal lines at V.35 interface... - Page 8 Definition of Signal Lines at V.35 Interface V.35 Feet Signal Function Direction —— CGND Frame ground —— signal ground request to send input consent to send output data set ready output data carrier detection output data terminal ready input transmitting data TXD A input...
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Page 9: Standard V.35 Crossover Cable Connection Diagram
5.2 Standard V.35 crossover cable connection diagram V.35 feet V.35 feet ————— CGND CGND ————— ————— ————— ————— ————— ————— TXDA RXDA ————— TXDB RXDB ————— RXDA TXDA ————— RXDB TXDB ————— EXCA RXCA ————— EXCB RXCB ————— RXCA EXCA —————... - Page 10 Local Loopback Schematic S5.6: local digital loopback control (DLOOP). “OFF” indicates normal operation; “ON” indicates local digital loopback. The default is “OFF”. With a loopback from local V.35 interface to E1 optic interface, it is used for testing whether the remote device and E1 optic line are in normal operation.
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Page 11: Framing/Non-Framing And Time Slot Settings
Remark: Pseudo-random sequence code test can be made only under a loopback status. At this moment, constantly lightening of LOOP and PTOK/CRC lamps shows local status, flash shows remote status; TXD and RXD lamps are used for showing the status of local TXD or RXD. -
Page 12: Common Problems
6. Common Problems Common Failures and Solutions No. Failure Cause Solution 1.Power supply not properly connected 1.Check power switch and jack PWR power supply 2.Protector tube damaged 2.Replace protector tube 3.Correct -48V indicator lamp not 3. -48V DC input tie-line in power supply line connection lightening reverse connection...
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