Application: | Communication |
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Type: | Single-mode Fiber |
Connection Structure: | Sc or St Connecting Port |
Samples: |
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Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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RS-422 & RS-485 Connections | ||
6-Bit Terminal | RS-422 | RS-485 |
PIN1 | T+ | 485+ |
PIN2 | T- | 485- |
PIN3 | R+ | NC |
PIN4 | R- | NC |
PIN5 | VIN | VIN |
PIN6 | GND | GND |
The MODEL277SM uses a separate LED emitter and photo-detector operating at 1310nm wavelength Connections
to the emitter and detector are on SC/ST/FC type connectors. One fiber is required for each connection between a transmitter and receiver. In a point-to-point configuration, two fibers are required between the two modems, one for data in each direction. A multi-drop ring configuration requires one fiber between TX and RX around the loop.
The most important consideration in planning the fiber optic link is the "power budget" of the fiber modem. This value represents the amount of loss in dB that can be present in the link between the two modems before the units fail to perform properly. This value includes line attenuation as well as connector loss. For the MODEL277SM the typical connector-to-connector power budget is 13 dB. Because 9/125um Single Mode Fiber cable typically has a line attenuation of 0.6 dB per Km at 1310 nm, the 13 dB power budget translates into 20 KM..
Transmission Line: Dual Single-mode optical cable
Point to Point Transmission: Asynchronous, half or full-duplex
Interfaces: RS-232, RS-422, or RS-485
Data Rates:
RS-232 0 to 115.2KBPS
RS-422/485 0 to 250KBPS
Distance : RS-485/RS-422 0-1.2Km
Fiber Typical Range: Up to 20Km on Single mode glass fiber
Coupled Power Budget: 15.0 dB
Optic Wavelength: 1310 nm
Fiber Connector:
SC(ATC-277SM-SC)
ST(ATC-277SM-ST)
FC(ATC-277SM-FC)
Connectors:
DB-9 male for RS-232
6-Bit terminal for
RS-422/485 connection,
Power Supply: Requires 9 - 24V VDC @ 250 mA max.
Operation temperature:-40ºC-70ºC
EMI and Safety: CE,FCC Class A
Dimensions: 96 Lx 66W x 26H(mm)
Weight: 0.40Kg
P/N: | Fiber Type | Wavelength
(nm)
|
Fiber Length(Km) |
(nm) | Fiber Length(Km) | 1310 | 20 |
ATC-277SM-SC | SC | 1310 | 20 |
ATC-277SM-ST | ST | 1310 | 20 |
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