The 2237-R is the receiver unit of a fiber optic audio link system that converts digital stereo audio transmitted over a single fiber back to analog signals. It provides a 1/8" headphone jack, line-level phono jacks, and speaker phono jacks with a maximum output of 1W into 8 ohms. It includes an optical signal loss LED and a mute button. The unit operates with optical wavelengths of 820 nm (1300 nm optional), uses an ST optical interface (SMA optional), and requires input power of 110 VAC 50/60 Hz or optional 230 VAC or 12-24 VDC. It meets FCC Class A, Part 15 standards and operates from 0°C to 50°C. The metal enclosure measures 7.375" X 7.625" X 1.875" (18.7 X 19.4 X 4.8 cm) and weighs 2 lbs. (1 kg).
Models 2237-T and 2237-R provide one-way stereo audio over a single fiber
Typical applications include paging systems, music distribution, and control
with audio tones.
The 2237-T has 1/8" (3.5mm) microphone input and stereo line level phono
jack inputs. The 2237-T digitizes the audio input into 16-bit samples at 48KH
rate. The microphone input is copied to both channels, the two line inputs
remain in respective channels. The digitized stereo audio is transmitted acros
a single fiber and received at the 2237-R. The 2237-R converts the digitized
audio back to analog. The 2237-R has 1/8" headphone jack, line level phono
jacks, and speaker phono jacks.
The 2237-T has volume adjustment to maximize the use of the digitized
channel. The 2237-R has optical signal loss LED. Both the 2237-T and 2237
have mute buttons.
Several 2237-R units can be connected to a single 2237-T with the use of a
fiber splitter, S.I.Tech Model 9024.
| S.I. Tech, Inc. | |
|---|---|
| Product Category | Network Media Converters |
| Product Number | 2237 R |
| Product Name | Fiber Optic Audio Link Dedicated Listen |
| Form Factor | Module |
| Features | LED Indicator |
| Operating Temperature | 0.0 to 50 C (32 to 122 F) |
| Compliances | FCC Class A, Part 15 |
