Cisco 1801W Hardware Installation Guide - Page 46
Ethernet Connections, ISDN BRI Connections, Ports and Cabling - 1801 m
View all Cisco 1801W manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 46 highlights
Connecting WAN and LAN Cables Chapter 4 Power, Cable, and Antenna Connection Procedures Ethernet Connections The IEEE has established Ethernet as standard IEEE 802.3. The Cisco 1800 series fixed-configuration routers support the following Ethernet implementations: • 100BASE-T-100-Mbps full-duplex transmission over a Category 5 or better unshielded twisted-pair (UTP) cable. Supports the Ethernet maximum length of 328 feet (100 meters). • 10BASE-T-10-Mbps full-duplex transmission over a Category 5 or better unshielded twisted-pair (UTP) cable. Supports the Ethernet maximum length of 328 feet (100 meters). See the Cisco Modular Access Router Cable Specifications online document for information about Ethernet cables, connectors, and pinouts. ISDN BRI Connections The ISDN BRI S/T interface on the Cisco 1801, Cisco 1802, Cisco 1803 and Cisco 1812 routers provides an ISDN BRI connection for dial-backup purposes. The BRI S/T interface requires an external Network Terminator 1 (NT1). Use a BRI cable (not included) to connect the BRI S/T interface card directly to an ISDN NT1. Table 4-1 lists the specifications for ISDN BRI cables. Also, see the Cisco Modular Access Router Cable Specifications online document for pinouts. This document is located on Cisco.com. Table 4-1 ISDN BRI Cable Specifications Specification Resistance (at 96 kHz) Capacitance (at 1 kHz) Impedance (at 96 kHz) Wire diameter Distance limitation 1. nF = nanofarad High-Capacitance Cable Low-Capacitance Cable 160 ohm/km 120 nF1/km 160 ohm/km 30 nF/km 75 ohm 150 ohm 0.024 in. (0.6 mm) 0.024 in. (0.6 mm) 32.8 ft (10 m) 32.8 ft (10 m) Ports and Cabling Table 4-2 summarizes WAN and LAN connections for Cisco 1800 series fixed-configuration routers. The connections summarized in Table 4-2 are also described in detail in the following documents: • Cisco Modular Access Router Cable Specifications • Cisco Network Modules Hardware Installation Guide • Cisco Interface Cards Hardware Installation Guide Cisco 1800 Series Integrated Services Routers (Fixed) Hardware Installation Guide 4-4 OL-6425-03