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Your Serial and Data Communications Expert

Shenzhen 3onedata Technology Co.,Ltd

Model277/B

Model277/B

Model277/B

Model277/B

RS-

RS-

RS-

RS-

485/422

485/422

485/422

485/422

to

to

to

to

Fiber

Fiber

Fiber

Fiber

Converter

Converter

Converter

Converter

(SM

(SM

(SM

(SM

&

&

&

&

MM)

MM)

MM)

MM)

III

I

ntroduction

ntroduction

ntroduction

ntroduction

:::

:

Model277/B is one kind can offer RS-485/422 serial port carry

transparent optic fiber modem of transmission to get end to user, no

need patch cords set up, switch over automatically, and can detect

and examine the signal speed automatically, zero delays time to

transmit automatically.

Model277/B adopt optic fiber transmit,

have isolate protection, data privacy is fine, working steady, data,

such threats to communication equipment as the wave is welled up

and interfered with electromagnetically that the effective one has

prevented the abominable environment from being struck by

lightning, can work in the abominable and dangerous environment

reliably.

Can be used in occasions such as various industrial control, course

controlling, traffic controlling and intellectual district , especially

suit the bank, electricity and

interfering with environment

department

and

system

with

the

special

requirement

electromagnetically.

Packing

Packing

Packing

Packing

L

L

L

L

ist

ist

ist

ist

:::

:

Model277/B is shipped with following items.

1. Model277/B

×

1

2. 5VDC power adapter

×

1

2. User manual

×

1

F

F

F

F

eatures:

eatures:

eatures:

eatures:

1. Extend RS-485/422 transmission

up to 120km with single-mode(SM)

up to 2km with multi-mode(MM)

2.Transmit asynchronously, point-to-point to use, speed reach

500Kbps

3. 600W surge protection, 1500W surge protection

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