Patton Electronics 1110A Miniature, Asynchronous, Fiber Optic Modem

Patton Model 1110A

Miniature, Asynchronous, Fiber Optic Modem

Now You Can Have the Noise and Transient Immunity of Fiber Optics in a Miniature, Self-Powered Package!

Features & Benefits

Asynchronous, RS-232 Operation
Full or Half Duplex
Data Rates up to 19.2 Kbps
Range up to 5 Miles (8km)
Continuous or Controlled Carrier
External DCE/DTE Switch
Very Thin Case (.75"/1.9cm) for Closely Spaced Computer Ports
EMI/RFI and Transient Immunity
No AC Power Required
LED Status Indicators
SMA or ST Connector Options

Overview

The Patton Model 1110A miniature RS-232 fiber optic modem packs all the advantages of fiber into a compact self-powered package. Communicating full or half duplex over two fibers, the Model 1110A supports data rates to 19.2 Kbps and distances up to 5 miles (8 km).

Optical fiber carries several advantages over twisted pair copper for data communications:
Copper wire requires shielding against RFI/EMI noise in many environments, whereas fiber is immune to RFI/EMI.
In building-to-building applications, copper wire requires DC isolation to avoid ground looping. Fiber, on the other hand, does not have DC continuity. Fiber is therefore not subject to ground looping.
If a copper link passes through a field of energy created by a lightning strike, this transient energy will be conducted to the hardware at either end. But a fiber link will not pick up this harmful radiated energy–it is immune to transients.

Being a fiber optic modem, the Model 1110A has all of these advantages.

The Model 1110A requires no AC power or batteries to operate. All necessary operating power is drawn from the data and control signals on the RS-232 interface. Carrier may be internally switch selected for "Continuously On" or "Controlled by RTS". For added convenience, the Model 1110A features an external DCE/DTE switch. This eliminates the need for cumbersome RS-232 crossover cables, allowing the Model 1110A to plug directly into the RS-232 interface. The miniature size of the Model 1110A allows it to fit in tight installation spaces. The pop-open/snap-shut ABS plastic case allows easy access to the configuration switches. On the fiber side, the Model 1110A is available with a choice of SMA or popular ST connectors.

Specifications

Transmission Line: Dual multi-mode optical cable
Transmission Mode: Async., full or half duplex
Range: 5 miles (8 km) over continuous fiber (with attenuation 2.5 db/km)
Receiver Sensitivity: - 42 dBm
Coupled Output Power: -18 to -24 dBm (depending on fiber specifications)
Optic Wavelength: 850 nm
Indicators: One LED indicates transmission of data
Interface: EIA RS-232, CCITT V.24 DB-25M or F, Fiber Optic, ST or SMA connectors.
Data Rates: 0 - 19.2 Kbps
Power: Derived from EIA data and controls
Dimensions: 2.66" x 2.10" x 0.73" (6.8 x 5.3 x 1.9 cm)