Appendix B. Cabling Quick Reference
Network cabling is always subject to a distance limitation, depending on the medium used and the bandwidth supported. Table B-1 provides a quick reference by listing the maximum cabling distance for a variety of network media and cable types.
Table B-1. Cabling Distances for Network Media and Cabling|
| 10/100BaseTX Ethernet
| EIA/TIA Category 5 UTP
| 100 m (328 ft)
| | 100BaseFX
| Multimode Fiber (MMF) 62.5/125
| 400 m half duplex
2000 m full duplex
| Single-Mode Fiber (SMF)
| 10 km
| | 1000BaseCX
| STP
| 25 m (82 ft)
| | 1000BaseT
| EIA/TIA Category 5 UTP (4 pair)
| 100 m (328 ft)
| | 1000BaseSX
| 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)
| | 1000BaseLX/LH
| 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 (32810 ft)
| | 1000BaseZX
| SMF
| 70 to 100 km
| | SONET
| MMF (62.5 or 50.0 micron)
| 3 km (1.5 mi)
| | SMI (Single-Mode Intermediate Reach)
| 15 km (9 mi)
| | SML (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 (Shielded Twisted-Pair)
| 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
| 312 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)
| | When using 1000BaseLX/LH GBICs with 62.5 micron MMF, a mode-conditioning patch cord must be used for distances greater than 300 m (984 ft).
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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 B-2 shows the pinout for an RJ-45 connector when used with specific media.
Table B-2. RJ-45 Connector Pinouts Based on Media Type|
| 1
| RTS
| TX+
| GND
| | | Rcv Ring
| TX Tip
| TX Ring
| RX (input)
| | 2
| DTR
| TX-
| GND
| | | Rcv Tip
| TX Ring
| TX Tip
| RX (input)
| | 3
| TxD
| RX+
| TX+
| TX+
| | | TX Shld
| | | | 4
| GND
| | RX+
| RX+
| Tip or Ring
| Ring
| RX Tip
| | TX (output)
| | 5
| GND
| | RX-
| RX-
| Tip or Ring
| Tip
| RX Ring
| | TX (output)
| | 6
| RxD
| RX-
| TX-
| TX-
| | | RX Shld
| | | | 7
| DSR
| | GND
| | | | | RX Tip
| | | 8
| CTS
| | N/A
| | | | | RX Ring
| |
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