2-4
Cisco ME 2400 Ethernet Access Switch Hardware Installation Guide
OL-7678-01
Chapter 2 Switch Installation
Preparing for Installation
Warning
Installation of the equipment must comply with local and national electrical codes.
Statement 1074
Caution To comply with the Telcordia GR-1089 Network Equipment Building Systems (NEBS) standard for
electromagnetic compatibility and safety, connect the ethernet cables only to intrabuilding or
nonexposed wiring or cabling.
Note The grounding architecture of this product is DC-isolated (DC-I).
Note You can use the grounding lug to attach a wrist strap for ESD protection during servicing.
Installation Guidelines
When you determine where to place the switch, be sure to observe these requirements:
• For copper Ethernet ports, including 10/100 ports and 1000BASE-T SFP module ports, cable lengths
from the switch to connected devices can be up to 328 feet (100 meters).
• Table 2-1 lists the cable specifications for the fiber-optic SFP module connections. Each port must
match the wave-length specifications on the other end of the cable, and for reliable communications,
the cable must not exceed the required cable length.
Table 2-1 Fiber-Optic SFP Module Port Cabling Specifications
SFP Module
Wavelength
(nanometers) Fiber Type
Core Size
(micron)
Modal
Bandwidth
(MHz/km) Cable Distance
100BASE-BX
(GLC-FE-100BX-D
GLC-FE-100BX-U)
1310 TX
1550 RX
SMF 9 32,810 feet (10 km)
100BASE-FX
(GLC-GE-100FX)
1310 MMF 50
62.5
500 6,562 feet (2 km)
100BASE-FX
(GLC-FE-100FX)
Min: 1270
Typical: 1300
Max: 1380
MMF 50/125
62.5/125
500 6,562 feet (2 km)
100BASE-LX
(100BASE-LX10)
1310 SMF 9 32,810 feet (10 km)
1000BASE-BX10-D
(GLC-BX-D)
1490 TX
1310 RX
SMF G.652
1
— 32,810 feet (10 km)
1000BASE-BX10-U
(GLC-BX-U)
1310 TX
1490 RX
SMF G.652
1
— 32,810 feet (10 km)
