Cisco Systems 7401ASR manual Gbic Cabling and Connection Equipment, Transmit Power Receive Power

Appendix A Specifications

Gigabit Ethernet GBIC Configurations and Port and Cabling Specifications

Gigabit Ethernet GBIC Configurations and Port and Cabling Specifications

The Gigabit Interface Converter (GBIC) port is a 1000-Mbps optical interface in the form of an SC-type duplex port that supports IEEE 802.3z interfaces compliant with the 1000BASEX standard.

Note The GBIC is a separately orderable part and does not ship installed in your Cisco 7401ASR router. You must install the GBIC before you connect the cables to it.

Note Optical fiber cables are commercially available; they are not available from Cisco Systems.

Table A-6 GBIC Transmit Power, Receive Power, and Power Budget

	Transmit Power		Receive Power
GBIC	Minimum	Maximum	Minimum	Maximum	Power Budget
GBIC-SX= or	–9.5 dBm1	–4 dBm1	–17 dBm	0 dBm	7.5 dBm2
WS-G5484=
GBIC-LX/LH=	–9.5 dBm3	–3 dBm5	–20 dBm	–3 dBm	7.5 dBm6	and 8.0 dBm7
or WS-G5486=	–11.5 dBm4
GBIC-ZX= or	0 dBm	5.2 dBm	–24 dBm	–3 dBm	–24 dBm
WS-G5487=

1.For fiber types 50/125 ∝ m, NA = 0.20 fiber and 62.5/125 ∝ m, NA = 0.275 fiber.

2.For fiber types 50 ∝ m MMF and 62.5 ∝ m MMF.

3.For fiber types 9/125 ∝ m SMF.

4.For fiber types 62.5/125 ∝ m MMF and 50/125 ∝ m MMF.

5.For fiber types 9/125 ∝ m SMF, 62.5/125 ∝ m MMF, and 50/125 ∝ m MMF.

6.For fiber types 50 ∝ m MMF and 62.5 ∝ m MMF.

7.For fiber type 10 ∝ m SMF.

GBIC Cabling and Connection Equipment

Table A-7provides cabling specifications for the GBICs that you install in Gigabit Ethernet ports. Note that all GBIC ports have SC-type connectors. Also, the minimum cable distance for the WS-G5484= or GBIC-SX and GBIC-LX/LH or WS-G5486 (multimode fiber [MMF] and single-mode fiber [SMF]) is

6.5feet (2 m), and the minimum link distance for the GBIC-ZX or WS-G5487 is 6.2 miles (10 km) with an 8-dB attenuator installed at each end of the link. Without attenuators, the minimum link distance for the GBIC-ZX or WS-G5487 is 24.9 miles (40 km).

	Cisco 7401ASR Installation and Configuration Guide
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