Specifications

22 AR Router
C613-03058-00 REV A
Figure6: Front and rear panels of the AT-AR370(S) router.
Table 6: Functions of the front panel LEDs on the AT-AR350 router .
LED Function
LAN Link Lit when the Ethernet interface is connected to a device (e.g., a hub),
which is generating link pulses. This LED is normally lit.
LAN Txd Lit when data is being transmitted over the Ethernet interface.
LAN Coll (yellow) Lit when a collision is detected on the Ethernet interface.
LAN Rxd Lit when data is being received on the Ethernet interface.
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
370SFRP
SYNCHRONOUS 0
CONFIG
Asynchronous
ports
DIP
switch
4321
Ethernet port
Synchronous port
AR370
LEDs
Front Panel
PORT 1 (RS232)
PORT 0 (RS232)
ETHERNET 0
HUB PC
MDX
AR370
BRI 0 S/T BUS
To Network Other Devices
ISDN
BRI ISDN Port
Access Router
COLLISION
10BASE-T
WAN
LINK
TRANSMIT
RECEIVE
SYN
ISDN
ACTIVE
SYSTEM
R
U
N
POWER
Model name
100–240 VAC, 50–60Hz, 300mA.
DISCONNECT MAINS SUPPLY BEFORE REMOVING LID
NO USER SERVICEABLE PARTS
Power inlet