Cisco CISCO776 Installation Guide - Page 26

Data Call Button (Cisco770 Series Routers Only), Front Panels, Table 1-1

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Front Panels Table 1-1 Front-Panel LED Functions (continued) LED Function LK4 (Cisco 770 only) On when there is a connection on the fourth LAN link of the unmanaged hub is connected. Blinks (once every 1.5 seconds) when there is a problem with the connection. CH1 Blinks when a call is establishing a connection on the first B channel. On when a call is established or the connection has not yet timed out. CH1 RXD Blinks when packets are received on the first B channel. CH1 TXD Blinks when packets are sent on the first B channel. CH2 Blinks when a call is establishing a connection on the second B channel. On when a call is established or the connection has not yet timed out. CH2 RXD Blinks when packets are received on the second B channel. CH2 TXD Blinks when packets are sent on the second B channel. PH 1 PH 2 (Cisco 765, Cisco 766, Cisco 775, and Cisco 776 only) • Blinks when the corresponding basic telephone service line is off-hook. • Blinks in the following patterns when entering DTMF commands for the corresponding basic telephone service port on the router: - Blinks twice every second for 2 seconds if the command is entered correctly. - Blinks once every second for 4 seconds if the command is entered incorrectly. Data Call Button (Cisco 770 Series Routers Only) The data call button on the front panel of Cisco 770 series routers provides an alternative to establishing or disconnecting data calls through the command interface. The data call button performs in Make or Break mode. If no B channels are connected for data, and at least one B channel is available, the button works in Make mode and attempts to establish a call. When at least one B channel is connected for data, the button works in Break mode, disconnecting the call. Table 1-2 summarizes the operation of the Cisco 770 series data call button. 1-12 Cisco 700 Series Router Installation Guide

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Front Panels
Cisco 700 Series Router Installation Guide
1-12
Data Call Button (Cisco 770 Series Routers Only)
The data call button on the front panel of Cisco 770 series routers provides an alternative to
establishing or disconnecting data calls through the command interface. The data call
button performs in Make or Break mode. If no B channels are connected for data, and at
least one B channel is available, the button works in Make mode and attempts to establish
a call. When at least one B channel is connected for data, the button works in Break mode,
disconnecting the call. Table 1-2 summarizes the operation of the Cisco 770 series data call
button.
LK4 (Cisco 770 only)
On when there is a connection on the fourth LAN link of the
unmanaged hub is connected. Blinks (once every 1.5 seconds) when
there is a problem with the connection.
CH1
Blinks when a call is establishing a connection on the first B channel.
On when a call is established or the connection has not yet timed out.
CH1 RXD
Blinks when packets are received on the first B channel.
CH1 TXD
Blinks when packets are sent on the first B channel.
CH2
Blinks when a call is establishing a connection on the second
B channel. On when a call is established or the connection has not yet
timed out.
CH2 RXD
Blinks when packets are received on the second B channel.
CH2 TXD
Blinks when packets are sent on the second B channel.
PH 1
PH 2
(Cisco 765,
Cisco 766, Cisco 775,
and Cisco 776 only)
•
Blinks when the corresponding basic telephone service line is
off-hook.
•
Blinks in the following patterns when entering DTMF commands
for the corresponding basic telephone service port on the router:
—
Blinks twice every second for 2 seconds if the command is
entered correctly.
—
Blinks once every second for 4 seconds if the command is
entered incorrectly.
Table 1-1
Front-Panel LED Functions (continued)
LED
Function