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Connector and Cable Specifications
This appendix contains these topics:
Cables and Adapters
SFP Module Cables
Each port must match the wave-length specifications on the other end of the cable, and the cable must not exceed the stipulated cable length. Copper 1000BASE-T SFP module transceivers use standard four twisted-pair, Category 5 cable at lengths up to 328 feet (100 meters).
Table 1 Fiber-Optic SFP Module Port Cabling Specifications GLC-EX-SMD
1310
SMF
G.6522
24.9 miles (40 km)
GLC-SX-MMD
722 feet (220 m) 902 feet (275 m) 1,640 feet (500 m) 1,804 feet (550 m)
GLC-LH-SMD
1,804 feet (550 m) 1,804 feet (550 m) 1,804 feet (550 m) 32,810 feet (10 km)
GLC-ZX-SMD
85 feet (26 m) 108 feet (33 m) 216 feet (66 m) 269 feet (82 m) 6,561 feet (2000 m)
SFP-10G-ER
1550
SMF
G.6522
24.86 miles (40 km)5
722 feet (220 m) 722 feet (220 m) 328 feet (100 m) 722 feet (220 m) 722 feet (220 m)
SFP-H10GB-CU1.5M
SFP-H10GB-CU2M
SFP-H10GB-CU2-5M
Twinax cable, 30-AWG cable assembly
Twinax cable, 30-AWG cable assembly
Twinax cable, 30-AWG cable assembly
Twinax cable, 30-AWG cable assembly
5 feet (1.5 m)
6.5 feet (2.0 m)
8 feet (2.5 m)
1 Modal bandwidth applies only to multimode fiber.2 A mode-field diameter/cladding diameter = 9 micrometers/125 micrometers.3 A mode-conditioning patch cord is required. Using an ordinary patch cord with MMF, or 1000BASE-LX/LH SFP modules and a short link distance can cause transceiver saturation, and an elevated bit error rate (BER). When using the LX/LH SFP module with 62.5-micron diameter MMF, you must also install a mode-conditioning patch cord between the SFP module and the MMF cable on both the sending and receiving ends of the link. The mode-conditioning patch cord is required for link distances greater than 984 feet (300 m).4 1000BASE-ZX SFP modules can send data up to 62 miles (100 km) by using dispersion-shifted SMF or low-attenuation SMF; the distance depends on the fiber quality, the number of splices, and the connectors.5 For distances up to 30 km, no special link design rules need to be considered. Link distances beyond 30 km require that you verify the cable characteristics, especially the cable's loss value.Console Port Adapter Pinouts
The RS-232 console port uses an 8-pin RJ-45 connector. Use an RJ-45-to-DB-9 adapter cable to connect the switch console port to a console PC. You need to provide a RJ-45-to-DB-25 female DTE adapter to connect the switch console port to a terminal. You can order the kit (part number ACS-DSBUASYN=) from Cisco.
