Lascomm: DATA communication equipment : Synchronous High Speed RS-422 Modem

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LASCOMM

2009 Dewberry Court, Westlake Village, CA
91361-1810

Phone 805-496-8053
Fax 805-497-3606
Email sales@lascomm.com

Fiber Optic Data Communications

Modems

MODEL LT1500

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MODEL LT1500

Synchronous High Speed RS-422 Modem

Sync Data Rates Up to 2.048 Mbps
Distances up to 20km
Multimode or Single Mode (850/1300/1500nm)
DTE/DCE Selectable
Six Diagnostic LEDs
Slave Clock
Local & Remote Loopback Functions
High Temperature (-20°C to 70°C) Version Optional

Application

The LT1500 is typically used to link high speed synchronous data devices. It is frequently used in harsh environments because of its fiber optic benefits. This makes it is an efficient, low cost solution to electrical/radio frequency interference, ground loops, and lightning problems

Description

Compact and reliable, the LT1500 Fiber Optic Modem links synchronous data communication equipment requiring RS-422/RS-449 interfaces. It supports synchronous data rates up to 2.048 Mbpswith an external clock.

Transparent to the data, the LT1500 combines external clocking and data into an optical composite signal for transmission between local and remote units. It is DCE/DTE switchable.

Diagnostics include local and remote Loopback and visual indicators for power, Receiving Timing, Receive Data, Transmit Timing, Transmit Data, and Optic Sync. DIP switches are provided for the Local and Remote Loopback functions, Slave Clock, and DCE/DTE configuration.

The LT1500 will work with all types and sizes of multimode (850nm/1300nm) or single mode (1300/1500nm) fiber optic cable. Fiber optic connectors are ST or FC. The electrical connector is a male DB37. Power is 9 to 12VDC or 115/230VAC with an external power cube. An extreme temperature version (-20ºC to 70ºC), Model LT1500T, is also available.

*Contact factory for higher requirements

Specifications

Data Rates
Sync.......................up to 2.048Kbps

Optical
   Transmitter.....................LED/ELED*
   Receiver...........................PIN Diode
   Wavelength
   ..............850nm/1300nm Multimode
   ..........1300nm/1550nm Single Mode
   Fiber Optic Connectors
   ............................. ST, FC Optional
   Loss Budget.......850/1300/1550nm
   Multimode @ 62.5/125µm........15dB
   Single Mode @ 9/125µm.........20dB

Electrical
Connector..................DB37 Male
Interface.....................DCE/DTE Switchable
..................................RS-422, RS-449

System
Bit Error Rate..........1 in 10⁹or better

Visual Indicators
LEDs = PWR , RxT, RxD, TT, TxD, Sync

Power
Standard.............12VDC @ 300mA
Optional..............115/230VAC with power cube

Temperature
   Operating......................-10° to 50°C
   High temp (optional).......-20° to 70°C
   Storage.........................-40° to 90°C
   Humidity..........95% non-condensing

Physical
   Height.......................(2.00 cm) 0.79"
   Width........................(10.40 cm) 4.1"
   Depth........................(7.5 cm) 2.96
   Weight......................(121 gm) 5.5 oz.
   Contact factory for higher requirements