Cabletron Systems CSX1000 - Manual (Page 420)

USER’S GUIDE
420 CyberSWITCH
The Sync indicator identifies whether or not the most basic level of the ISDN connection (Layer 1)
is established. It verifies that the system is connected to the ISDN network at this PRI port.
LANVIEW LED S ( CSX1200-E11-MOD)
The LANVIEW LEDs are located on the hub portion of the CSX1200-E11-MOD’s back panel. These
LEDs are convenient troubleshooting tools that can help you diagnose power failures, collisions,
cable faults, and link problems. There are three categories of LANVIEW LEDs: Receive LEDs,
Collision LEDs, and Link LEDs.
Each Ethernet port has a Receive LED. This LED provides activity information for a specific Ethernet
port. It blinks yellow when traffic is present. Heavy traffic causes a fairly constant yellow light.
CONSOLE 10Base-T AUI
SLOT 1
AIS LOF
RAI LOS
SLOT 2
S
L
O
T
4
S
L
O
T
3
green LED = link
yellow LED = receive
(located on each jack)
6 5 4 3 2 1 9 8 7 11 10
red LED = collision