Determining Cable Distances; Ethernet And Fast Ethernet Transmission Distances; Oc-3, Oc-12, And Oc-48 Pos Fiber Interface Specifications - Cisco 7603 - Modular Expansion Base Installation Manual

Chapter 2 Preparing for Installation
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Ethernet and Fast Ethernet Transmission Distances

Table 2-1
Table 2-1
Transceiver
Speed
10 Mbps
10 Mbps
100 Mbps
100 Mbps
100 Mbps

OC-3, OC-12, and OC-48 POS Fiber Interface Specifications

The specification for optical fiber transmission defines two types of fiber: single-mode and multimode.
Within the single-mode category, three transmission types are defined: short reach, intermediate reach,
and long reach. Within the multimode category, only short reach is available.
Table 2-2
specifications for OC-12 OSM interfaces; and
Table 2-2
Fiber
Interface
Single-Mode
Long Reach
Single-Mode
Intermediate
Reach
Multimode
Short Reach
OL-5077-7
Port Connector Requirements, page 2-16
lists the IEEE maximum transmission distances for Ethernet and Fast Ethernet.
Ethernet and Fast Ethernet Maximum Transmission Distances
Cable Type
Category 3 UTP
Multimode fiber
Category 5 UTP
Single-mode fiber
Multimode fiber
Single-mode fiber
lists the specifications for OC-3 Optical Services Module (OSM) interfaces;
OC-3 Fiber Interface Specifications
Power
Budget Output Power
Min
29.0 dB –5.0 dBm
16.0 dB –15.0 dBm –8.0 dBm
11.0 dB –19.0 dBm –14.0 dBm –30.0 dBm
Maximum Distance
Duplex Mode Between Stations
Full and half 328 ft (100 m)
Full and half 1.2 mi (2 km)
Full and half 328 ft (100 m)
Full 6.2 mi (10 km)
Half 1312 ft (400 m)
Table 2-4 lists specifications for OC-48 OSM interfaces.
Input Power
Max Min
0 dBm –34.0 dBm
–31.0 dBm

Determining Cable Distances

Table 2-3
Wavelength
Max
–8.0 dBm 1550 nm
–8.0 dBm 1310 nm
–14.0 dBm 1310 nm
Book Title
lists the
2-11