Milan Technology RS485-CF-0x Cable Specifications, Fiber Cable, RS-485/422 Copper Cable

Page 3

FAULT ISOLATION and CORRECTION

If the Media Converter fails, isolate and correct the failure by determining the answers to the following questions and then taking the indicated action:

1.Is the P(o)w(e)r LED on the Media Converter illuminated?

NO

Is the power adapter the proper voltage and cycle frequency for the AC outlet?

NOTE: Refer to the “Power Supply Requirements” on page 7.

Is the power adapter properly installed in the Media Converter and in the grounded AC outlet?

Does the grounded AC outlet provide power?

Contact Technical Support at (800) 260-1312.

YES

Proceed to step 2.

2.Is the RXF LED illuminated?

NO

Disconnect and reconnect the fiber cable to restart the initialization process.

Contact Technical Support: (800) 260-1312.

YES

Proceed to step 3.

3.Is the RXC LED illuminated?

NO

Disconnect and reconnect the copper cable to restart the initialization process.

Restart the terminal device(s) to restart the initialization process.

Contact Technical Support: (800) 260-1312.

YES

Proceed to step 4.

4.Does the data fail to move across the link, even though both LEDs are illuminated?

YES

Check the RS-485/RS-422 cables for proper configuration and connection.

Contact Technical Support at (800) 260-1312.

CABLE SPECIFICATIONS

Fiber Cable

MULTIMODE

Fiber Optic Cable Recommended:

62.5 / 125 µm multimode fiber

Optional:

100/140, 85/125, 50/125 µm mm fiber

Wavelength:

850 nanometers

 

RS485-CF-01, RS485-CF-01(SC), RS485-CF-02, RS485-CF-02(SC):

Fiber Optic Transmitter Power:

min: -16.0 dBm

max: -10.0 dBm

Fiber Optic Receiver Sensitivity:

min: -32.0 dBm

max: -7.2 dBm

Link Budget:

16.0 dB

 

Typical Maximum Cable Distance**:

2 kilometers

 

SINGLEMODE

 

 

Fiber Optic Cable Recommended:

9 µm singlemode fiber

Wavelength:

1300 nanometers

 

RS485-CF-01(SM), RS485-CF-02(SM)

 

 

Fiber Optic Transmitter Power:

min: -23.0 dBm

max: -14.0 dBm

Fiber Optic Receiver Sensitivity:

min: -34.0 dBm

max: -14.0 dBm

Link Budget:

11.0 dB

 

Typical Maximum Cable Distance**:

20 kilometers

 

**Actual distance dependent upon physical characteristics of network installation.

RS-485/422 Copper Cable

Gauge

24 to 22 AWG

Attenuation

20 dB/1000’ @ 10 MHz

Differential Characteristic Impedance

100 ±10% @ 10 MHz

Maximum Cable Distance varies by baud rate: 4000ft[1220M] at <90kbaud decreasing logarithmically to 300ft[92M] at 500kbaud).

RS-485/422 DB-9 SIGNALS

Not Used

9

5

Signal Ground

4

Receive (-) (B) RS-485 4-wire, (-) RS-422

Not Used

8

3

Receive (+) (A) RS-485 4-wire, (+) RS-422

Not Used

7

2

Transmit/Receive (+) (A) RS-485 2 or 4-wire, (+) RS-422

Not Used

6

1

Transmit/Receive (-) (B) RS-485 2 or 4-wire, (-) RS-422

 

 

Protective Ground

RS-485/422 TERMINAL BLOCK SIGNALS

6 Transmit/Receive (-) (B) RS-485 2-wire, (-) RS-422 Transmit

5 Transmit/Receive (+) (A) RS-485 2-wire, (+) RS-422 Transmit

4 Receive (+) RS-485 4-wire, RS-422

3 Receive (-) RS-485 4-wire, RS-422

2 Ground

1 Ground

5

6

RS485-CF-0x

Image 3
Contents USER’S Guide Operation InstallationCable Specifications Fiber CableRS-485/422 Copper Cable Compliance Information Technical Specifications