7450 ESS-7 Overview
7450 ESS-7 Page 23
Alarms OT • Red: An overtemperature condition exists.
If there are no OT conditions, this LED should remain off.
Crit • Red: Indicates that a critical condition exists, such as a power supply
overtemperature condition, a fan tray failure, or an AC or DC power
supply failure.
If there are no critical conditions, this LED should remain off.
Maj • Red: Indicates that a serious condition exists, such the removal of a
power supply.
If there are no major conditions, this LED should remain off.
Min • Amber: There are no conditions defined for a minor alarm.
This LED should remain off.
4 BITS • The BITS port is provisioned with a RJ-45 jack and used for the
network clock source.
• In the In the 7450 ESS-7 model, the fan status LEDs on the secondary
SFM will light similarly to the primary SFM. A fault is indicated in one
SFM if the primary fan status LED and the comparable secondary LED
differ. The SFM should be returned for repair.
5 DTE Flip the switch to DTE when connecting to the serial port of a PC with a
null modem cable. When the switch is flipped to DTE, the console port is
acting as a data terminal equipment (DTE) serial port.
DCE Flip the switch to DCE when connecting to the serial port of a PC with a
straight-through cable. When the switch is flipped to DCE, the console
port is acting as a data communications equipment (DCE) serial port.
6 Console The console port is provisioned with a DB-9 jack and used for the initial
system startup as well as system configuration and monitoring. The
console port, a Universal Asynchronous Receiver/Transmitter (UART)
port, is used for system configuration and monitoring.
Use a EIA/TIA-232 DCE console cable to connect a terminal to the
console port.
The factory default baud rate is typically 115.2KBaud.
7 AUX The UART Auxiliary (diagnostic) port is provisioned as a DB-9 serial
auxiliary port and is used for modem connection.
8 Alarm The Alarm port is provisioned as a DB-9 serial port and is used to connect
to external alarm devices that report conditions that trigger red or amber
alarms.
Table 5: SF/CPM Field Descriptions (Continued)
Key Label/Part Sub
category
Description
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