2.3 E1 RJ45 Pinout
If you are using a shielded E1 cable for your network connection, it must be grounded through pins 3, 6, 7
and 8.
3.0 ADDITIONAL INFORMATION
3.1 LED Indications
(A pulsing LED blinks steadily at a rate of once per second. A flashing LED blinks at a more
rapid, less constant rate.)
3.2 European Regulatory Compliance for Class A Equipment
E1 RJ45 PINOUT
Pin 1 Rx Ring
Pin 5 Tx Tip
Pin 2 Rx Tip
Pin 6 not used
Pin 3 not used Pin 7 not used
Pin 4 Tx Ring
Pin 8 not used
LED
State
Indication
Additional Information
Port 1
Lnk and
Port 2
Lnk
flashing
green
E1 connection is established and active Traffic is flowing.
solid green
problematic E1 connection
A connection exists but there is indication of
a problem with the E1 line.
no
illumination
Loss of Synchronization (LOS)
The incoming connection to the UIM-
2E1 has been lost; no data is being
received.
If the outgoing connection from the UIM-2E1
has also been lost then the remote E1
equipment has LOS as well.
Port 1
Alm and
Port 2
Alm
no
illumination
E1 is operational
An established E1 link has no alarm
indications and is operational UNLESS the
E1 Lnk LED remains unlit as well, in which
case the UIM-2E1 has LOS.
solid amber
Remote Alarm Indication (RAI)
The outgoing connection from the UIM-
2E1 has been lost; no data is being
transmitted.
The remote E1 equipment has lost its
incoming connection and has LOS.
pulsing
amber
Alarm Indication Signal (AIS)
An indirect connection has been lost;
the UIM-2E1 may no longer be receiving
data from the remote E1 equipment.
The remote E1 equipment has lost a
connection with an intermediate device and
has LOS or RAI.
N
OTE
The following regulatory compliance information applies to the UIM-2E1 as installed in a Mini DSLAM or on a MUM in
an IP DSLAM.
220-0000083 rev 01
