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Distance and Pinout Information
Maximum Transmission Distances
Transceiver Speed Cable Type
Max. Distance
Between Stations
10/100-Mbps Ethernet Category 5 UTP 328 feet (100 m)
100-Mbps Ethernet Multimode fiber 1640 feet (500 m)
1000-Mbps Ethernet Multimode fiber 1640 feet (500 m)
1000-Mbps Ethernet Single-mode fiber 16404 feet (5 km)
25-Mbps ATM Category 5 UTP 328 feet (100 m)
155-Mbps ATM Single-mode fiber 9 miles (15 km)
155-Mbps ATM Single-mode fiber, long reach 18 miles (30 km)
155-Mbps ATM Multimode fiber 1.2 miles (2 km)
622-Mbps ATM Single-mode fiber 9 miles (15 km)
622-Mbps ATM Single-mode fiber, long reach 25 miles (40 km)
1
1. If you are attaching a short cable to the 622-Mbps long-reach port adapter, you must add 10 dB of
attenuation to the cable or the transmitter might overdrive the receiver and introduce data errors.
622-Mbps ATM Multimode fiber 1640 feet (500 m)
T1, 1.544-Mbps ATM Category 5 twisted-pair 650 feet (198 m)
E1, 2.048-Mbps ATM Category 5 twisted-pair and FTP (120 ohm) 650 feet (198 m)
E1, 2.048-Mbps ATM Coaxial cable (75 ohm) 650 feet (198 m)
CDS3, 45-Mbps Coaxial cable 450 feet (137 m)
CE1, 2.048-Mbps ATM Category 5 twisted-pair 650 feet (198 m)
CES T1 Category 5 twisted-pair and FTP 650 feet (198 m)
CES E1 Category 5 twisted-pair and FTP (120 ohm) 820 feet (248.5 m)
CES E1 Coaxial cable (75 ohm) 650 feet (198 m)
DS3, 45-Mbps Coaxial cable 450 feet (137 m)
E3, 34-Mbps Coaxial cable 1299 feet (396 m)
Pinouts to RJ-45 Connectors
The 10/100 Mbps Ethernet interface module with unshielded twisted-pair (UTP)
ports supports RJ-45 connectors.
Pinouts to RJ-48c Connectors
The T1, E1, CES T1 and CES E1 port adapters support RJ-48c connectors.
Pin Signal Description
1 RXD+ Receive data +
2 RXD– Receive data –
3 NC No connection
4 NC No connection
5 NC No connection
6 NC No connection
7 TXD+ Transmit data +
8 TXD– Transmit data –
Pin Description
1 Receive ring
2 Receive tip
3 No connection
4 Transmit ring
5 Transmit tip
6 No connection
7 No connection
8 No connection