Appendix A. Cabling Quick ReferenceTable A-1 lists the various types of Gigabit Interface Converters (GBICs) that you can use in Cisco Catalyst switches. Table A-1. Cisco Catalyst GBICsGBIC Type | Cisco Part Number | Media Connector | Media Type |
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1000BASE-T | WS-G5482 | RJ-45 | Category 5 UTP | Gigastack | WS-X3500-XL | Stack cable | Stack cable | CAB-GS-50CM | | 50 cm stack cable | CAB-GS-1M | | 1 m stack cable | 1000BASE-SX | WS-G5484 | SC | MMF[1] | 1000BASE-LX/LH | WS-G5486 | SC | MMF or SMF[2] | CAB-GELX-625 | SC | Mode conditioning patch cable | 1000BASE-ZX | WS-G5487 | SC | SMF |
[1] MMF = multimode fiber
[2] SMF = single-mode fiber
Network cabling is always subject to distance limitations, which depend on the media used and the bandwidth supported. Table A-2 provides a quick reference by listing the maximum cabling distance of a variety of network media and cable types. Table A-2. Cabling Distances for Network Media and CablingMedia | Cable Type | Maximum Distance |
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10/100BASE-TX Ethernet | EIA/TIA Category 5 UTP[1] | 100 m (328 ft) | 100BASE-FX | MMF 62.5/125 | 400 m half-duplex 2000 m full-duplex | SMF | 10 km | 1000BASE-CX | STP[2] | 25 m (82 ft) | 1000BASE-T | EIA/TIA Category 5 UTP (4 pair) | 100 m (328 ft) | 1000BASE-SX | MMF 62.5 micron, 160 MHz/km | 220 m (722 ft) | MMF 62.5 micron, 200 MHz/km | 275 m (902 ft) | MMF 50.0 micron, 400 MHz/km | 500 m (1640 ft) | MMF 50.0 micron, 500 MHz/km | 550 m (1804 ft) | 1000BASE-LX/LH[3] | MMF 62.5 micron, 500 MHz/km | 550 m (1804 ft) | MMF 50.0 micron, 400 MHz/km | 550 m (1804 ft) | MMF 50.0 micron, 500 MHz/km | 550 m (1804 ft) | SMF 9/10 | 10 km (32,810 ft) | 1000BASE-ZX | SMF | 70 to 100 km | SONET | MMF (62.5 or 50.0 micron) | 3 km (1.5 mi) | SMI[4] | 15 km (9 mi) | Single-mode long reach | 45 km (28 mi) | FDDI | MMF | 2 km (1.2 mi) | SMF | 15 km (9.3 mi) | Token Ring (IEEE 802.5) | STP | 500 m (1640 ft) | Token Ring (IEEE 802.5) | EIA/TIA Category 5 UTP | 100 m (328 ft) | ISDN BRI | UTP, RJ-45 | 10 m (32.8 ft) | Async EIA/TIA-232 | 2400 baud | 60 m (200 ft) | 4800 baud | 30 m (100 ft) | 9600 baud | 15 m (50 ft) | 19200 baud | 15 m (50 ft) | 38400 baud | 15 m (50 ft) | 57600 baud | 7.6 m (25 ft) | 115200 baud | 3.7 m (12 ft) | Sync EIA/TIA-449 with balanced drivers, including X.21 and V.35 | 2400 baud | 1250 m (4100 ft) | 4800 baud | 625 m (2050 ft) | 9600 baud | 31 m (1025 ft) | 19200 baud | 156 m (513 ft) | 38400 baud | 78 m (256 ft) | 56000 baud | 31 m (102 ft) | T1 (1.544 mbps) | 15 m (50 ft) |
[1] UTP = unshielded twisted-pair
[2] STP = single twisted-pair
[3] When using 1000BASE-LX/LH GBICs with 62.5 micron multimode fiber, you must use a mode-conditioning patch cord for distances of more than 300 m (984 ft). See www.cisco.com/univercd/cc/td/doc/product/lan/cat5000/cnfg_nts/ethernet/5421_01.htm for installation and usage information.
[4] SMI = single-mode intermediate reach
In many cases, you might find that you need to know the pinout connections for various network cables. The RJ-45 connector is commonly used across many media, but with different pinouts for each. Table A-3 shows the pinout for an RJ-45 connector when used with specific media. Table A-3. RJ-45 Connector Pinouts Based on Media TypeRJ-45 Pin | Router Console (DTE) | Ethernet UTP | Token Ring UTP | ISDN BRI S/T TE | ISDN BRI U | CT1/PRI CSU | CE1/PRI | 56/64kbps DSU/CSU[1] | T1/E1[1] |
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10/100 | 1000 |
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1 | RTS | TX+ | TP0+ | GND | | | Rcv Ring | TX Tip | TX Ring | RX | 2 | DTR | TX | TP0 | GND | | | Rcv Tip | TX Ring | TX Tip | RX | 3 | TxD | RX+ | TP1+ | TX+ | TX+ | | | TX Shld | | | 4 | GND | | TP2+ | RX+ | RX+ | Tip or Ring | Ring | RX Tip | | TX | 5 | GND | | TP2 | RX | RX | Tip or Ring | Tip | RX Ring | | TX | 6 | RxD | RX | TP1 | TX | TX | | | RX Shld | | | 7 | DSR | | TP3+ | GND | | | | | RX Tip | | 8s | CTS | | TP3 | | | | | | RX Ring | |
[1] An RJ-48 connector is actually used in these applications. |