Cisco WS-X4604-GWY - VoIP Gateway Spezifikationen Seite 116

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7-2
Cisco Catalyst 4000 Access Gateway Module Installation and Configuration Note
OL-3008-01
Chapter 7 Configuring Encryption Services
Configuring the Encryption Service Adapter
Configure the T1 Channel Group
The first step toward configuring the ESA is to establish a T1 connection. In order to do this, you must
define the characteristics of a configuration group (such as speed and slot number).
To configure the T1 channel group, follow this procedure:
Command Purpose
Step 1
gateway(config)# controller
{t1|e1}slot|port
Specifies a controller and enter controller configuration
mode.
Step 2
gateway(config-controller)# clock
source
{line|internal|loop-timed}
Specifies the clock source for a link.
line specifies that the link uses the recovered clock
from the link and is the default setting. Generally, this
setting is most reliable.
internal specifies that the DS1 link uses the internal
clock.
loop-timed specifies that the T1 or E1 interface takes
the clock from the Rx (line) and uses it for Tx. This
setting decouples the controller clock from the
system-wide clock set with the network-clock-select
command.
Step 3
gateway(config-controller)# framing
{sf|esf}
Specifies the framing type for the T1 or E1 data line.
sf specifies Super Frame as the T1 frame type.
esf specifies Extended Super Frame as the T1 frame
type.
Step 4
gateway(config-controller)#
linecode
{ami|b8zs|hdb3}
Specifies the line code format.
ami specifies alternate mark inversion (AMI) as the
line-code type. Valid for T1 or E1 controllers; the
default for T1 lines.
b8zs specifies B8ZS as the line-code type. Valid for T1
controller only.
hdb3 specifies high-density bipolar 3 (hdb3) as the
line-code type. Valid for E1 controller only; the
default for E1 lines.
Step 5
gateway(config-controller)#
channel-group channel_number
timeslots range
Specifies the channel group and time slots to be mapped.
Step 6
gateway(config-controller)# exit
Returns to global configuration mode.
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