Twait Timer - Cisco 761M Installation Manual

Power-On Self-Test
Table 5-1
RDY
On
Off
On
Off
Off
Off
Off
Off
Off
Off
1 EPROM = erasable programmable read-only memory.
2 HDLC = High-Level Data Link Control.

TWAIT Timer

During initialization (power-up or reboot), with the switch type set to NI1, the following
message displays:
host> Please wait for TWAIT timer to expire in __ seconds
host> Make a call to bypass this timer
The timer value varies from 1 second to 5 minutes. Upon expiration of the time, the router
requests a terminal endpoint identifier (TEI) and initiates SPID initialization as usual. If
needed, either a voice or data call can be initiated instead of waiting for the timer to expire.
This stops the timer immediately and allows initialization to continue.
Note that the call will be successful unless the ISDN line has not been given enough time
to rest before power-up or reboot.
5-2
Cisco 700 Series Router Installation Guide
LED Error Messages (continued)
NT1 LINE
Blinks once a Off
second
Off On
Off On
Off Off
Off Off
Off Off
Off Off
Off On
Off On
Off On
CH1 CH2 Test Result
Off Off Internal NT1 is synchronized with the ISDN
switch, but is unable to synchronize with the
ISDN terminal devices.
Off Off Waiting for software.
On On Processor inactive.
Off Off Processor self-test error.
Off On EPROM
On Off RAM error.
On On Flash memory error.
2
Off On HDLC
On Off Configuration port error.
On On ISDN interface chip error.
1
checksum error.
packet chip error.