MODEL277A-M-SC-2KM: Bộ chuyển đổi quang điện 1 cổng RS-232 sang Quang (2 sợi quang, Multi Mode, SC, 2KM)

Number of interfaces: 1

Interface form: optional SC/ST/FC port

Transmission distance:

lMultimode: 2km

lSingle mode: 20/40/60/80/100/120Km

Transmission wavelength:

lMultimode: 1310nm

lSingle mode: 1310nm or 1550nm 

Standards: EIA RS-232C, RS-485, RS-422

Number of interfaces: Support 1 RS-232, RS-485/422 or 3IN1 serial port

RS-232 signals: OUT, IN, GND

RS-485 signals: D+, D-, GND

RS-422 signals: T+, T-, GND, R+, R-

Baud rate: 300bps-115200bps

MODEL277 interface form: RS-232/485/422 serial port, adopts 8-pin 5.08mm pitch terminal blocks

MODEL277A interface form: RS-232 serial port, DB9 female

MODEL277B interface form: RS-485/422 serial port, adopts 5-pin 5.08mm pitch terminal blocks

Direction control: RS-485 direction adopts ADDC (Automatic Data Direction Control) technology

Load capacity: RS-485/422 end supports 32 points polling environment (customizable 128 points)

Transmission distance: RS-232, 15m; RS-485/422, 1200m

RS-485 pull high/low resistor: 4.7kΩ 

 LED Indicator

 Power

Requirement

MODEL277

lInput power supply: 12～48VDC

lConnection mode: 2-pin 5.08mm pitch terminal blocks

MODEL277A, MODEL277B three optional power supply solutions

lExternal power supply: 5VDC, adopts DC round head for connection, MODEL277B supports 2.0A overcurrent protection

lBuilt-in power supply: -48VDC, adopts 3-pin 5.08mm pitch terminal blocks;

220VAC, adopts 3-hole AC socket with switch 

Environmental

Limit

MODEL277:

lOperating temperature: -40～75℃

lStorage temperature: -40～75℃

lRelative humidity: 5%~95% (no condensation)

MODEL277A, MODEL277B:

lOperating temperature: -10~60℃

lStorage temperature: -40～85℃

lRelative humidity: 5%～95% (no condensation) 

Physical

Characteristic

Housing: IP30 protection grade, metal shell

Installation: wall mounting or DIN-Rail mounting (DIN-Rail accessories should be purchased separately)

MODEL277 dimension (W×H×D): 100mm×69mm×22mm

MODEL277A, MODEL277B dimension (W×H×D):

lExternal power supply: 94mm×70.6mm×26mm

lBuilt-in power supply: 173.2mm×115mm×30mm