Data Call Button (Cisco 770 Series Routers Only) - Cisco 761M Installation Manual

Front Panels
Table 1-1
LED
LK4 (Cisco 770 only)
CH1
CH1 RXD
CH1 TXD
CH2
CH2 RXD
CH2 TXD
PH 1
PH 2
(Cisco 765,
Cisco 766, Cisco 775,
and Cisco 776 only)

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
Front-Panel LED Functions (continued)
Function
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.
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.
Blinks when packets are received on the first B channel.
Blinks when packets are sent on the first B channel.
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.
Blinks when packets are received on the second B channel.
Blinks when packets are sent on the second B channel.
• 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.