2-Port 100M Multi-Mode Optical Interface Module (Ds-2Fmm); Figure 2-22 Front View Of The Ds-2Fmm Module; Table 2-12 Interface Features Of The Ds-1Gsx Module - Sagem 4450E Hardware Installation Manual

1.1.1.16 1.1.1.16 Interface features of the DS-1GSX module
1.1.1.16 1.1.1.16

Table 2-12 Interface features of the DS-1GSX module

Module
type
DS-1GSX
The fiber system is divided into two types by the optical transmission mode: Multi-mode fibers and
single-mode fibers. A multi-mode optical fiber is a fiber that transmits signals in multiple modes at a
given wavelength. Phase difference may occur in the multi-mode transmission because the lights of
different modes will transfer at different speeds along a line. As a result, transmission distortion will
occur and thus the transmission band will be restricted. Two specifications are available now for the
cores of multi-mode optical fibers: 62.5 µm and 50 µm. In ISO/IEC 11801, both the two modes are
recognized transmission media.

2.5.3. 2-port 100M Multi-mode Optical Interface Module (DS-2FMM)

2.5.3. 2.5.3. 2.5.3.
The DS-2FMM module provides 2 100M multi-mode fast Ethernet optical interfaces. The physical
interface is a standard SC optical interface and the multi-mode fiber is used whose maximum
transmission distance is 2 km. Two pairs of multi-mode fibers are required for it. The fiber length and
peer interface type depend on the real situation.
Structure of the DS-2FMM module
1.1.1.17 1.1.1.17
1.1.1.17 1.1.1.17
The front panel of the DS-2FMM module is shown in the Figure 2-22:

Figure 2-22 Front view of the DS-2FMM module

The front panel of the DS-2FMM module is composed of the following parts:
2 standard SC 100M multi-mode optical interfaces
2 LINK status indicator
2 ACT status indicator
3P@C Installation Manual
Page 2-18
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Quantity Interface
of type
interfaces
1 SC
SC multi-mode
optical interface
Interface Fiber
attributes specifications
1000Base- 62.5/125 µm multi-
SX mode fiber with a
wavelength of 850
nm
50/125 µm multi-
mode fiber with a
wavelength of 850
nm
DS-2FMM 100M
interface module
SAGEM 3P@C
Transmi
ssion
distance
275m
550m
Status LED