Nortel Proprietary
display has passed the T:21 state) re-enable the card in LD32 using the ENLC
command.
Debug Terminal Access
The Nortel Remote Agent Observe Card Debug Terminal access is provided via an
RS-232 port. This is accessible via the NTAG81CA faceplate serial cable.
Messages indicating the completion of each self test phase, as well as any detected
faults will be logged to this serial port.
The pinouts for the Mini-DIN Connector, to which the faceplate maintenance cable
connects, are given in Table 15.
The terminal connected to the serial port requires these settings: 9600bps, 8 data
bits, 1 stop bit, no parity, and no flow control.
Pin No. Signal
Dir Description
1 BDTRB-
O Port B Data Terminal Ready
2 BSOUTB- O Port B Serial Data Out
3 BSINB-
I
Port B Serial Data In
4 SGND
C Signal Ground
5 BSINA-
I
Port A Serial Data In
6 BCTSA-
I
Port A Clear To Send
7 BSOUTA- O Port A Serial Data Out
8 BDTRA-
O Port A Data Terminal Ready
Table 15 Faceplate Connector mini-DIN Connector pin-out
Debug Features
While the Nortel Remote Agent Observe Card is booting, the 8051 auxiliary
processor has control of the serial port, and uses it to provide debug information,
progress of self tests, etc. Once the 8051 releases the main processor (ixp1200)
from reset, the main processor by default grants VxWorks shell access through this
port. The card also supports remote access to the shell via telnet.
Planning, Installation and Administration Guide
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