Hardware Reference
21
C613-03031-01 REV E
Figure 5: Front and rear panels of the AT-AR350 router.
Table 5: Functions of the front panel LEDs on the AT-AR320/AT-AR330 router.
LED
Function
LAN Data 1
Lit when data is being transmitted over the Ethernet 1 interface.
LAN Link 1
Lit when the Ethernet 1 interface is connected to a device (e.g., a hub),
which is generating link pulses. This LED is normally lit.
LAN Data 0
Lit when data is being transmitted over the Ethernet 0 interface.
LAN Link 0
Lit when the Ethernet 0 interface is connected to a device (e.g., a hub),
which is generating link pulses. This LED is normally lit.
WAN Rxd
Lit when data is being received over the synchronous interface.
WAN Txd
Lit when data is being transmitted over the synchronous interface.
WAN Active
Lit when a higher layer module (e.g., PPP) has attached to the interface
and DCD or its analog (“I” for X.21) is active. This usually indicates that
the NTU or DSU/CSU is connected to a correctly provisioned data circuit.
System (red)
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 will light briefly during power-
up and operator initiated reboot.
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.
Power
Lit when power is supplied and the router is switched on.
Rear Panel
350FRP
ETHERNET 0
SYNCHRONOUS 0
HUB
PC
CONFIG
MDX
Asynchronous
ports
DIP
switch
4
3
2
1
Ethernet port
Synchronous port
AR350
LEDs
Front Panel
PORT 1 (RS232)
PORT 0 (RS232)
AR350
Access Router
COLLISION
10BASE-T
WAN
LINK
TRANSMIT
RECEIVE
RXD
TXD
ACTIVE
SYSTEM
RUN
POWER
Model name
100–240 VAC, 50–60Hz, 300mA.
DISCONNECT MAINS SUPPLY BEFORE REMOVING LID
NO USER SERVICEABLE PARTS
Power inlet
