Hitachi GR2000 Series Installation Manual page 202

optical fiber cable. Figure 3-94 shows the cable specifications, which are the same as
those for the OC-3c/STM-1 (POS) MMF interface (Subsection 3.10.2.6). One or more
cables of the same type is recommended to be prepared for spare.
The boundary with ATM (OC3) is used as a connector on this router's side.
A multimode optical fiber is used for connection with the router. Figure 3-101 shows
the schematic diagram. This router's optical interface specifications are shown in
Table 3-107.
3 [Directly connected between routers (when connection is not possible using a cable in
2-core SC connector
(router side)
Boundary with network: router's connector
1-core FC/SC/ST connector x 2 (box side)
Graded index multimode fiber of 50/125 or 62.5/125 µm
core/clad, 1300 nm wavelength, max. attenuation 1 dB/km,
minimum bandwidth 400 MHz•km (max. 2 km)
4 below)]