Model 2563
RS-232, RS-422, and RS-485 Asynchronous Fiber Optic Mini Modem
Features:
- Concurrent, fully-independent RS232, RS422, and RS485 communication channel over a one duplex fiber optic cable (data is multiplexed over fiber link)
- Up to 115kbps asynchronous operation
- Full duplex RS232 and RS422 - Optional tri-state control for bus RS422 systems
- Half duplex RS485 - Rotary switch sets the RS485 bit rate
- Metal ST connector receptacle (SMA option)
- Female DB25 connector RS232 wired as DCE device
- LED indicators for power, optical link status, transmit and
receive data
- Optical link status pin
- Multimode or single mode
- DIN rail mounting option
S.I. Tech 2563 is a unique Bit-Driver allowing simultaneous communication using RS232, RS422, and RS485. Each electrical interface is totally independent and share combined fiber link. This way equipment with different interfaces can be connected over the same fiber link i.e. in a manufacturing plant.
Specifications
| Operating Mode: | Asynchronous, simplex or full duplex |
| Input/Output Interface: | Full independent RS232/RS422/RS485, asynchronous concurrent. DB25 connector |
| Transmission Line Interface: | Metal ST connector is standard for interfacing with fiber optic duplex cable (SMA option, SC and FC option for SM) |
| Transmission Distance: | See Distance Chart |
| Optical Power into a 62.5 Micron Core Optical Fiber: | 20 microwatts, 10 dB power budget @ 820 nanometers (1300 nm Option) |
| Receiver Sensitivity: | 2 microwatts at less at less than 10-9 bit error rate |
| Operating Temperature: | 0 °C to 50 °C |
| Metal Enclosure: | 3.6” x 2.3” x 1.2”
(9.1 x 5.84 x 3.0 cm) |
| Weight: |
0.4 lb. (185 grams) |
| Input Power: | 9 to 12VDC, 200mA |
Operating Distance for Fiber Optic Cable
Optical unit connection: Connect the optical transmission line to T and R receptacles. Note which cable channel goes to T or R by noting cable imprint. On the other end, reverse the connection.
DB25 Female Connector Pinout
RS485 Data Rate
| 0 | 1200 bps |
| 1 | 2400 bps |
| 2 | 4800 bps |
| 3 | 9600 bps |
| 4 | 19.2 Kbps |
| 5 | 38.4 Kbps |
| 6 | 76.8 Kbps |
| 7 | 115.2 Kbps |
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