Chapter 2: Network Requirements

Table 2-2 Transmitter Power Parameters

 

 

Worst

Worst

Typical

Parameter

Typical Value

Case

Case

Budget

 

 

Budget

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50/125 m

-13.0 dBm

-15.0 dBm

13.0 dB

17.5 dB

fiber

 

 

 

 

 

 

 

 

 

62.5/125

-10.0 dBm

-12.0 dBm

16.0 dB

20.5 dB

m fiber

 

 

 

 

 

 

 

 

 

100/140 m

-7.0 dBm

-9.0 dBm

19.0 dB

23.5 dB

fiber

 

 

 

 

 

 

 

 

 

Error Rate

Better than 10-10

 

 

 

 

 

 

 

 

The link distance is up to 2 kilometers on the multimode fiber optic cable as specified by ANSI MMF-PMD.

2.1.2FPIM-02 and FPIM-04

The FPIM-02 has an RJ-45 connector supporting an Unshielded Twisted Pair (UTP) connection. The FPIM-04 has an RJ-45 connector supporting a Shielded Twisted Pair (STP) connection. The pinouts for both are listed in Table 2-3.

Table 2-3 FPIM-02 and FPIM-04 Pinouts

Pin Number

Represents

Pin Number

Represents

 

 

 

 

 

 

 

 

1

Transmit+

5

NA

 

 

 

 

2

Transmit-

6

NA

 

 

 

 

3

NA

7

Receive+

 

 

 

 

4

NA

8

Receive-

 

 

 

 

The link distance is up to 100 meters on unshielded twisted pair cable as specified by ANSI TP-PMD.

2-2 7F06-02 FDDI SmartSwitch Interface Module User’s Guide

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Cabletron Systems FDDI manual FPIM-02 and FPIM-04