Appendix A: 7705 SAR-M Connectors and LEDs
7705 SAR-M Chassis Installation Guide 155
6 Stat (Status)
LED
— The system status LED indicates the combined status of the router’s three
main functional blocks (the control and switching functional block, the
T1/E1 ports functional block (for the variant with T1/E1 ports), and the
Ethernet ports functional block). Blocks that are administratively shut
down are not included in the combined status indicated by this LED.
Green (solid): Indicates that the system is operationally up, which means
that all functional blocks configured to be administratively up are
operationally up
Green (blinking): Indicates that one or more functional blocks is
initializing
Green and Amber (blinking): Indicates that ADP is running on the
system
Unlit: Indicates that the system is operationally down
7 ACO/LT Push
Button
— The Audible Alarm Cutoff/Lamp Test button verifies LED operation,
turns off the external alarm control bits, and controls the ADP interface
during startup.
When pressed: The Lamp Test is enabled (if ADP is not running on the
system) and the following LED activity occurs:
• the system status LED on the chassis glows green
• critical and major Alarm LEDs glow red and the minor Alarm
LED glows amber
Note: The following LEDS are not affected by the Lamp Test:
Management port LEDs, Battery A/B LEDs, and all Ethernet port LEDs.
When released: All LEDs except the Alarm LEDs return to their
pre-Lamp Test state. The Alarm LEDs turn off and stay unlit until the
next new alarm condition.
When pressed and held for 3 s while ADP is running: The ADP
interface is enabled. Refer to Automatic Discovery Protocol for a
complete list of ADP commands using the ACO/LT button.
8 Console Connector The Console port uses an RJ-45 connector and is used for the initial
system startup as well as system configuration and monitoring. The
Console port is a Universal Asynchronous Receiver/Transmitter (UART)
port. Refer to Console Port for pinout assignments.
Use an RJ-45 CAT5e cable to connect a terminal to the Console port. The
factory default baud rate is 115.2 KBaud and can be reconfigured for 9.6,
19.2, 38.4, or 57.6 KBaud.
Table 32: 7705 SAR-M Connector and LED Descriptions (Continued)
Key Label/Part Sub-
category
Description
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