2-4
Cisco AS5400 Universal Gateway Chassis Installation Guide
OL-2847-02 0A
Chapter 2 Preparing to Install
Preparing to Connect to a Network
Warning
Hazardous network voltages are present in WAN ports regardless of whether power to
the router is OFF or ON. To avoid electric shock, use caution when working near WAN
ports. When detaching cables, detach the end away from the router first. To see
translations of the warnings that appear in the publication, refer to the
Regulatory
Compliance and Safety Information
document that accompanied this device.
Warning
The ISDN connection is regarded as a source of voltage that should be inaccessible to
user contact. Do not attempt to tamper with or open any public telephone operator
(PTO)-provided equipment or connection hardware. Any hardwired connection (other
than by a nonremovable, connect-one-time-only plug) must be made only by PTO staff or
suitably trained engineers. To see translations of the warnings that appear in the
publication, refer to the
Regulatory Compliance and Safety Information
document that
accompanied this device.
Network Specifications
Table 2-1
lists the network specifications to consider before connecting a T1 DFC to a network.
Table 2-2
lists the network specifications to consider before connecting an E1 DFC to a network.
Table 2-1
T1 Network Specifications
Description
Specification
Line rate
1.544 Mbps
Data rates (per
port)
number
x 56 or
number
x 64 kbps, where
number
= 1 to 24
Standards
AT&T Pub. 62411, 54016, and 43081,
and ANSI T1.403
Input
impedance
100-ohms per port
Table 2-2
E1 Network Specifications
Description
Specification
Line rate
2.048 Mbps
Data rate (per
port)
number
x 56 or
number
x 64 kbps, where
number
= 1 to 31.
Input
impedance
75 or 120-ohms per port
Note
The factory default setting for the E1 ports is 120 ohm. Use a software
command to change the impedance.
