Cabletron Systems FDDI ユーザーズマニュアル
Chapter 2:
Network Requirements
2-2
7F06-02 FDDI SmartSwitch Interface Module User’s Guide
The link distance is up to 2 kilometers on the multimode fiber optic cable
as specified by ANSI MMF-PMD.
as specified by ANSI MMF-PMD.
2.1.2
FPIM-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.
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.
The link distance is up to 100 meters on unshielded twisted pair cable as
specified by ANSI TP-PMD.
specified by ANSI TP-PMD.
Table 2-2
Transmitter Power Parameters
Parameter
Typical Value
Worst
Case
Worst
Case
Budget
Typical
Budget
50/125
µ
m
fiber
-13.0 dBm
-15.0 dBm
13.0 dB
17.5 dB
62.5/125
µ
m fiber
-10.0 dBm
-12.0 dBm
16.0 dB
20.5 dB
100/140
µ
m
fiber
-7.0 dBm
-9.0 dBm
19.0 dB
23.5 dB
Error Rate
Better than 10
-10
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-