7
E1 SUBSCRIBER UNIT
NOTE
For most applications, use a straight-through Ethernet cable when
plugging the E1 Subscriber Unit into a PC. Use a cross-over cable when
plugging into a hub or switch. Verify the pinout of the Ethernet device
into which you are connecting the Subscriber Unit to determine which
type of cable is required.
Once the units have established both E1 and Ethernet link on both sides of the
connection, normal data communication will flow through the units. This will
provide a very long Ethernet connection at E1 or fractional E1 speeds.
LED Indicators
These indicators are also described on the label on the bottom of the unit.
•
E1 Lnk LED:
Flashing green indicates that E1 is operational (no Red Alarm).
•
E1 Alm LED:
Steady/flashing amber indicates a Yellow/Blue Alarm.
•
Power LED:
Steady green indicates normal operation.
•
100 LED:
Steady green indicates a Fast Ethernet (100-Mbps) connection.
•
Act LED:
Flashing amber indicates activity on the Ethernet segment.
•
Lnk LED:
Steady green indicates that an Ethernet link has been established.
