1
SERIAL RS-232 / RS-422 / RS-485 FIBER OPTIC MODEM
RS-FX-MM, RS-FX-SM40
OPERATIONS MANUAL
1 DESCRIPTION AND OPERATION
1.1 Product Purpose
1.1.1 RS-FX-MM / RS-FX-SM40 Serial RS-232 / RS-422 / RS-485 Fiber Optic Modem (hereinafter
referred to as the modem) is designed to convert a standard RS232 / RS485 / RS422 signal to a fiber optic
link to extend the signal up to 40 Km.
1.1.2 The modem is intended for round-the-clock operation.
1.1.3 The modem is classed as non-repairable and periodically serviced equipment.
1.1.4 The modem’s design doesn’t imply operating it in aggressive and dusty environments or in
explosion and fire hazardous premises.
1.2 Specifications
Table 1.2.1
Parameter Value
1.2.1 Power input 1
1.2.2 Power supply voltage 12 through 48 Vdc
1.2.3 Power rate 5 W max
1.2.4 Start-up time 10 s
1.2.5 Data rates 300 through 115200 bps
1.2.6 Fiber range: - RS-FX-MM
- RS-FX-SM40
2 km
40 km
1.2.7 Fiber optic cable: - RS-FX-MM
- RS-FX-SM40
Multi-mode 50/125
m
Single-mode 9/125 µm
1.2.8 Fiber connector
SC/PC
1.2.9 Optic wavelength
1,310 nm
1.2.10 Serial range: - RS-232
- RS-422, RS-485
15 m
1,000 m
1.2.11 Orion ISS devices per a single RS-485 interface bus 127 max
1.2.12 Enclosure protection degree as per GOST 14254-2015 IP20
1.2.13 Resistance to mechanical exposure as per OST 25 1099-83 Arrangement Category III
1.2.14 Vibration exposure: - Frequency range
- Max acceleration
1-35 Hz
0.5 g
1.2.15 Environmental category as per OST 25 1099-83 О3
1.2.16 Operation Temperature Minus 30 to + 55°С
1.2.17 Weight 0.3 kg max
1.2.18 Overall dimensions
95
70
29 mm
1.2.19 Non-stop operation 24/7
1.2.20 MTBF 80,000 h min
1.2.21 Survival probability 0.98758
1.2.22 Expected service life 10 years
1.2.23 In terms of immunity to electromagnetic interference, the equipment meets the requirements of
Test Severity Level III as per the relevant standards listed in Appendix ‘Б’ to GOST R 53325-2012.
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