CHAPTER 2
NETWORK REQUIREMENTS
Before installing Cabletron Systems 7F06-02 Module, review the network requirements outlined in this chapter. All requirements included in this chapter should be met to ensure satisfactory performance of the 7F06-02
Module. Failure to do so may result in unsatisfactory network performance.
2.1
FPIM MODULE SPECIFICATIONS
This module uses Fiber Port Interface Modules (FPIM) to provide front panel cable connections. The FPIMs are user-installable. Refer to Section
3.2, Installing FPIMs.
2.1.1
FPIM-00 and FPIM-01
The FPIM-00 and FPIM-01 provide a multimode fiber connection. The
FPIM-00 uses a MIC style connector and the FPIM-01 uses an SC type
connector. The specifications for both devices are listed in Table 2-1,
while the transmitter power parameters are provided in Table 2-2.
Parameter
Table 2-1 FPIM-00 and FPIM-01 Specifications
Typical Value
-30.5 dBm
Worst
Case
-28.0 dBm —
Worst
Case
Budget
Receive
Sensitivity
Peak Input
Power
-7.6 dBm -8.2 dBm —
—
—
Typical
Budget
7F06-02 FDDI SmartSwitch Interface Module User’s Guide 2-1
Chapter 2: Network Requirements
Table 2-2 Transmitter Power Parameters
Parameter Typical Value
50/125
µ m fiber
62.5/125
µ m fiber
100/140
µ m fiber
Error Rate
-13.0 dBm
-10.0 dBm
-7.0 dBm
Better than 10 -10
Worst
Case
Worst
Case
Budget
-15.0 dBm 13.0 dB
-12.0 dBm 16.0 dB
-9.0 dBm 19.0 dB
Typical
Budget
17.5 dB
20.5 dB
23.5 dB
The link distance is up to 2 kilometers on the multimode fiber optic cable 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.
3
4
1
2
Pin Number
Table 2-3 FPIM-02 and FPIM-04 Pinouts
Represents
Transmit+
Transmit-
NA
NA
5
6
7
8
Pin Number Represents
NA
NA
Receive+
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
Chapter 2: Network Requirements
2.1.3
FPIM-05 and FPIM-07
The FPIM-05 and FPIM-07 provide a single-mode fiber connection. The
FPIM-05 uses a MIC style connector and the FPIM-07 uses an SC type
connector. The specifications for both devices are listed in Table 2-4.
Table 2-4 FPIM-05 and FPIM-07 Specifications
Parameter Typical Minimum Maximum
Transmitter Peak Wave Length 1300 nm
Spectral Width 60 nm
Rise Time
Fall Time
Duty Cycle
Bit Error Rate
3.0 nsec
2.5 nsec
50.1%
Better than
10 -10
-
1270 nm
2.7 nsec
2.2 nsec
49.6%
1330 nm
100 nm
5.0 nsec
5.0 nsec
50.7%
The link distance is up to 40 kilometers (max) and 25 kilometers (typical) on single-mode, fiber-optic cable as specified by ANSI SMF-PMD.
7F06-02 FDDI SmartSwitch Interface Module User’s Guide 2-3
Chapter 2: Network Requirements
2-4 7F06-02 FDDI SmartSwitch Interface Module User’s Guide
