(English) IT-7304-PC


V.35 Optic Fiber Modem

IT-7304-PC is a high-performance V.35 optic fiber modem developed by using a dedicated integrated circuit. It is to modulate a 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. V.35 interface may be directly connected with the V.35 interfaces of image and data terminals or the WAN ports of MUX, exchanger and router for a dedicated network setup or a LAN connection.


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  • Rate N×64Kbit/s (N=1~32)
  • Support the loopback of local analog/digital interface
  • Support remote loopback function
  • Support pseudo-random code test function
  • 120km trucking -free transmission distance for single-mode optic fiber
  • Capable to be communicated with FE1 Fiber Modem
  • Available with complete line detection and alarm indications
  • Available with independent structure and 19-inch Rack-mountable structure Rack-mountable structure can be inserted with 16 modules
  • AC 220V and DC –48V inputs may be selected for fiber optic modems of both structure
  • For Rack-mountable fiber optic modems, dual power supply heat backup is provided to ensure a high operating reliability



Optic interface:
Line mode type: CMI
Line mode rate: 2.048Mbps
Operating wavelength: 850nm, 1310nm or 1550nm
Optic fiber connector: SC/PC
Applicable optic fiber: multi-mode, single-mode
Transmission distance: Single-mode: up to 120km
Multi-mode: up to 2km
V.35 interface:
Data rate: N×64Kbps (N=1~32)
Available with CTS/RTS (Hardware) flow control function
Type of connector: M34 connector
Operating mode: DCE
Indicator lamps:
To indicate the operating status of power supply, data receiving/sending, loopback and random code test, code missing alarm, out-of-frame alarm etc.
Independent: 140mm (depth) x 210mm (width) x 42mm (height)
Rack-mountable: 19in 4.5U standard casing
Power supply:
Independent: 85V~264V AC input, 5V/2A output
-36V~-72V DC input, 5V/2A output
Rack-mountable: 150V~260V AC input, 5V/16A, 12V/1A output
-38V~-58V DC input, 5V/16A, 12V/1A output
Power consumption: 3W
Operating temperature: 0°C~50°C
Storage temperature: -20°C~80°C
Humidity: 5%~90% (free of condensate)
Warranty: 3 years
Approvals: FCC, CE, RoHS approvals

(English) IT-7304-PC

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Intellisystem Technologies