Nortel Networks Circuit Card 311 - Manual (Page 1033)

Faceplate LED display 1033
Serial data interface ports
The MGC has three serial data interface (SDI) ports. The ports can be
used locally for debugging, or they can be configured in the CS 1000E Call
Sever as system terminals. Only ports SDI 0 and SDI 1 can be used to
access the installation menu during initial configuration of the MGC. SDI 2
is not available during bootup. Due to a limitation of the three port cable
used, SDI 1 and SDI 2 do not use hardware flow control. Only SDI 0 has
full modem support.
TTY default settings
The default tty settings for the SDI ports are:
• Baud rate: 9600.
• Data bit length: 8.
• Stop bit: 1.
• Parity: none.
• Flow control: none.
MGC serial port configuration change
If the serial ports are configured as SL1 terminals on the Call Server, the tty
default settings can be changed in LD 17. Any values configured in LD 17
are downloaded to the MGC and override default values. The downloaded
values persist over restarts and power outages. A system message is
output when the serial port baud rate is changed.
Faceplate LED display
The faceplate on the MGC card has a four character LED display.
The diagnostic messages summarized in the following table are displayed
on the faceplate.
Table 427
Faceplate display
Message Description
BOOT This is the first message displayed when the system becomes active.
POST Power on self test. This message is displayed when the MGC is carrying
out system tests during power up.
PASS Power on self test pass.
EXXX Error code. XXX is a numeric value. An error code is displayed if a serious
system error is detected.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
.