UT-277SM/MM, Custom 460KBPS, RS-232 / 422 / 485 to optical media Fiber to Serial Converter
Negotiable /Piece
Min.Order:1 Piece
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UT-277SM/MM, Custom 460KBPS, RS-232 / 422 / 485 to optical media Fiber to Serial Converter
Specifications:
Interface |
Supports RS-232/RS-485/RS-422 interfaces |
Asynchronic transmission |
point-to-point with a rate as high as 460KBPS |
Transmission distance |
4,000 meters for multi-mode and 20,000 meters for single-mode |
Working temperature |
-40℃ to 80℃, relative humidity from 5% to 95% |
Working wave length |
1310nm (multi-mode) and 1310nm(single-mode) |
Electric interfaces |
RS-232: pole-shaped connector. RS-485/422: pole-shaped connector |
Fiber interface |
ST interface (SC/FC interface can be customed) |
RS-232 interface features |
Standard RS-232 three line interface 15KV(anti-static), ESD protection, maximum rate of 460KBPS. Input voltage DC9-48V@350mA |
RS-485/422 interface features |
Self-adaptive interface technology enables the self adaptation of rate regulation from interface, no switch needed, and the 15KV(antistatic) ESD protect supports as much as 32 points of polling.and 600W surge protection each line for RS-422 and RS-485 interfaces |
Connector (PIN) |
Signal |
RS-422Full-duplex |
RS-422Full-duplex |
1 |
T/R+ |
Send(A+) |
RS-485 (A+) |
2 |
T/R- |
Send(B-) |
RS-485 (B-) |
3 |
RXD+ |
RXD(A+) |
N/C |
4 |
RXD+ |
RXD(B-) |
N/C |
5 |
TXD |
RS-232(Send) |
|
6 |
RXD |
RS-232(RXD) |
|
7 |
GND |
RS-232(GND) |
|
8 |
VCC |
Power input (DC9-48V) |
|
9 |
GND |
GND |
|
10 |
ETH |
ETH |
Description:
Being a multi-function fiber modem in support of asynchronism RS-232,RS-485 and RS-422 communication interface, UT-277 is the best choice for the connection from remote terminal unit (RTU) to host(HOST) or Supervisory Control and Data Acquisition (SCADA) . It supports multiple asynchronism communication protocols including RS-232,RS-485 and RS-422, and it also supports a combination of two of the RS-232,RS-485 or RS-422 interfaces as well as both of the working modes, i.e. Two-line(half-duplex) RS-485 and four-line(full duplex) RS-422.The ability to support RS-485 mode for data TXD or SD sending control greatly improves its compatibility with various kinds of software besides a sharp simplification of control method. Various kinds of fiber connection between asynchronism serial interfaces are supported by UT-277 fiber modem. Both half duplex and full duplex communications through fiber between two asynchronism