Coaxial Cable Connections

Table 3	Ethernet and Fast Ethernet Maximum Transmission Distances

Transceiver Speed		Cable Type	Transmission Mode	Maximum Distance Between Stations

100 Mbps		Category 6	Full duplex and half duplex	328 ft (100 m)

100 Mbps		MMF	Half duplex	1312 ft (400 m)
			Full duplex	1.2 mi (2 km)

100 Mbps		Single mode fiber	Half duplex	1312 ft (400 m)
		(SMF)	Full duplex	6.2 mi (10 km)

1000 Mbps		MMF and SMF	Half duplex	1804 ft (550 m)
			Full duplex	6.2 mi (10 km)

For details about cabling specifications, refer to the Network Processing Engine and Network Services Engine Installation and Configuration guide at the following URL:

http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_installation_guides_list.html

Note A shielded CAT5e cable must be used to meet EMI Class A certification.

For details about Ethernet 10BaseT and 100BaseTX cables, refer to the Ethernet 100BaseTX and 10BaseT Cables: Guidelines and Specifications document at the following URL:

http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a00801f5d9e.shtml

Keep in mind the following information when you are setting up and cabling your system:

•The length of the cable determines the amount of signal loss.

•Headend-grade cable (quad-shield 59-series minimum) is recommended.

•Do not bend the coaxial cable tighter than the cable manufacturer’s specified minimum bend radius.

•Do not tighten cable connections (F connectors) more than 10 to 15 in-lbs.

•To prevent connection problems, always use the same size coaxial cable. For example, going from a 6-series cable to a 59-series cable may cause reliability issues (intermittent contact) in the headend environment.

Workbench and Tabletop Installation Guidelines

When installing the router on a workbench or tabletop, check the following:

•There is at least 3 inches (7.72 cm) of clearance at the inlet and exhaust vents (the right and left sides of the router).

•There is approximately 23.25 inches (59.06 cm) of clearance at the front, and 19 inches (48.3 cm) at the back of the router for installing and replacing field-replaceable units (FRUs), or accessing network cables or equipment.

•There is adequate ventilation (it is being installed in an enclosed cabinet where ventilation is adequate).

•Blank panels are installed in any slot that does not have a component.

•The cable-management bracket and four M3 x 8-mm Phillips panhead screws are set aside (if required).

Warning	Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury and
	equipment damage. Statement 48

MMF

Coaxial Cable Connections

Workbench and Tabletop Installation Guidelines