Specifications

42 AR Router
C613-03058-00 REV A
Table 19: Functions of LEDs of the AT-AR725 router.
The Main System
Main features of the AT-AR725 base CPU card are:
■
80 MHz RISC processor.
■
1 MByte of EPROM.
■
128 MBytes of synchronous DRAM (DIMM module).
■
16 MBytes of flash memory.
■
128 KBytes of battery backed SRAM.
■
2 high performance 10/100 Fast Ethernet LAN ports.
■
2 RS-232 asynchronous serial ports.
■
2 PIC bays.
■
A PAC compression/encryption card slot.
The Ethernet LAN ports are autosensing 10/100 full duplex interfaces. The
router auto-senses which interface type is in use.
LED Function
Front panel Rear panel
ETH
These LEDs give indications about the Ethernet interfaces.There are two LEDs for
each Eth port.
L/A (Link/Activity) Lit green when the Ethernet interface is connected to a device (e.g., a hub), which
is generating link pulses. Blinks yellow when data is being transmitted or received
on the Ethernet interface.
100M Lit when the Ethernet interface is in 100 Mbps mode.
PIC0/PIC1 Lit when a PIC is inserted in either PIC bay 0 or PIC bay 1 (one LED for each PIC).
BASE
These LEDs indicate the state of the main router unit.
Power PWR Lit when power is supplied and the router is switched on.
Run RUN Lit when the internal processor is executing code. If the processor stops for any
reason (a fault condition), then the LED will not be lit.
System SYS This LED is not normally lit. It is used to signal various system conditions (e.g.,
when the processor executes the reboot sequence). Generally it signals a possible
fault condition, but it is lit during a power-up or operator initiated reboot, and
remains lit until a release has been loaded from flash memory.
Security SEC Lit when a user is logged in with SECURITY OFFICER privilege and the router is in
SECURITY MODE.
Activity
(Compact Flash)
Lit when the compact flash card is accessed.
Do not remove the compact flash card when the LED is lit.
ENGINE
These LEDs give indications about a MAC (Mini Accelerator Card), which can be
installed for encryption and/or compression purposes.
ACT Lit when a MAC card is installed in the MAC slot.
DAT Lit when data is transferred to or from the MAC card.
ERR Lit when there is an error in the data transmission to or from the MAC card.
Clear CLR Lit when a secure router has enabled PPP interfaces or Frame Relay circuits that are
configured to send clear text.