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INTRODUCTION |
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The
FBR-Serial-2 is a multi-function serial to fiber optic
converter (fiber optic modem) that supports asynchronous serial communications
(RS-232, RS-485, and RS-422) through fiber optic links.
Besides the capability of long distance data transmission,
fiber lines are inherently resistant to EMI/RFI and
transient surges; therefore, they are ideal for data
communications near heavy electrical equipment and other
electrical or radio interference.
Depending
on the fiber cable and the type of converter used, a
multi-mode fiber optic converter can extend the
RS-232/485/422 distance to up to 1.2 miles (2 km), while a
single-mode fiber optic converter can extend the
RS-232/485/422 distance to up to 12.4 miles (20 km).
Standards can be mixed and matched, so RS-232 devices can be
connected to RS-485/422 devices, or RS-485 (2-wire) devices
can be connected to RS-422 (4-wire) devices without using a
converter and isolator.
The
unit supports serial data rates up to 460kbps and features
data format auto-sensing and self-adjusting, and, therefore,
no DIP switch or jumpers are required. When working with
RS-485 signals, the CommFront’s auto-turnaround feature
eliminates the need for flow control.
spec sheet |
FAQs
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FEATURES |
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Plug and play (Hot-pluggable, Data format
Auto-sensing & Self-adjusting). |
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Transmits serial data (RS-232, RS-485 or RS-422)
over long distances through fiber cables
(Multi-mode: 1.2 miles or 2 km; Single-mode: 12.4
miles or 20 km). |
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Supports serial data rates up to 460kbps. |
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Standards can be mixed and matched (Same data type,
RS-232 to RS-485/422 or RS-485 to RS-422). |
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Supports up to 32 nodes of RS-485/422 devices. |
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Wide temperature range (-40ºF
to 158ºF / -40ºC to 70ºC). |
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Single or Multi-mode, with ST or SC connectors. |
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A
wide range of fiber optic cables is supported. |
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Plug and play (hot-pluggable; data format
auto-sensing and self-adjusting). |
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Data direction auto-turnaround, no flow control is
required for RS-485 communications. |
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Electro-Static Discharge (ESD) for up to 15kV.
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SPECIFICATIONS |
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Compatibility: |
EIA/TIA RS-232C, RS-485, and
RS-422 standard |
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Power Source: |
9 to 36VDC (External AC to DC power
adapter included) |
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External AC/DC Power Adapter: |
9VDC/500mA (Input: 100~240VAC 50/60Hz, US type A plug) |
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Maximum Power Consumption: |
4 Watts |
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Serial Data Rates: |
Up to 460kbps (auto-sensing and self-adjusting) |
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Wavelength: |
1310nm |
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Usable Fiber Optic Cables: |
Multi-mode: 50/125, 62.5/125µm
Single-mode: 8.3/125, 8.7/125, 9/125, 10/125µm |
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Number of Maximum Nodes: |
RS-485/422: 32 nodes |
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Distance (Serial Port): |
RS-232: 16ft (5m); RS-485/422: 4000ft (1.2km) |
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Distance (Fiber Lines): |
Multi-mode: 1.2 miles (2km);
Single-mode: 12.4 miles (20km) |
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Connectors (Serial Port/Power): |
RS-232/485/422: 8-way terminal
block;
DC Input: 2-way terminal block |
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Connectors (Fiber Links): |
2x ST Connector or 2x SC Connector |
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Electro-Static Discharge (ESD): |
Up to 15kV |
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Dimensions (H x W x D): |
ST: 5.0 x
3.6 x 0.9 in (126 x 91 x 22 mm);
SC: 4.5 x 3.6 x 0.9 in (115 x 91 x 22 mm) |
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Weight: |
ST: 8.87 oz
(251.4 g) / SC: 8.73 oz (245.3 g) |
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Operating Temperature: |
-40ºF to
158ºF (-40ºC to 70ºC) |
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Operating Humidity: |
Up to 90% RH (no condensation) |
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CONNECTIONS |
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Figure 1: FBR-SERIAL-2
Connection Diagram |
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