ADTRAN HDSL4 239 H4R Job Aid

HDSL4 LED STATUS INDICATORS
239 H4R
Label
LP1/LP2
NET
P/N: 1223445L2
CLEI: T1R6U89D_ _
LP1/LP2
CUST
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE LL/RL
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
©2006 ADTRAN, Inc.
All Rights Reserved.
HDSL4 239 H4R Repeater
Indication Description
Off No span power is present
Solid Green Synchronized with an Signal-to-Noise Ratio (SNR)
margin greater than the SNR Margin Alarm Threshold
4
Fast Flashing Green Flashing three times per second indicates attempt to
synchronize with the H4TU-C
4
Slow Flashing Green Flashing once per second indicates synchronization
with a SNR margin greater than the SNR Margin
Alarm Threshold; attenuation is greater than the user
recommended Loop Attenuation Alarm Threshold
Solid Yellow Synchronized with a SNR margin greater than 0 dB,
but less than the SNR Margin Alarm Threshold
4 Flashing Yellow Synchronized with a SNR margin greater than 0 dB,
but less than the SNR Margin Alarm Threshold;
attenuation is greater than the Loop Attenuation
Alarm Threshold
Solid Red Synchronized with a SNR margin of 0 dB
4
Flashing Red Flashing once per second indicates synchronization
with a SNR margin of 0 dB; attenuation is greater than
the Loop Attenuation Alarm Threshold
Off No span power is present
Solid Green Synchronized with an Signal-to-Noise Ratio (SNR)
margin greater than the SNR Margin Alarm Threshold
4
Fast Flashing Green Flashing three times per second indicates attempt to
synchronize with the H4TU-R
4
Slow Flashing Green Flashing once per second indicates synchronization
with a SNR margin greater than the SNR Margin
Alarm Threshold; attenuation is greater than the Loop
Attenuation Alarm Threshold
Solid Yellow Synchronized with a SNR margin greater than 0 dB,
but less than the SNR Margin Alarm Threshold
4 Flashing Yellow Synchronized with a SNR margin greater than 0 dB,
but less than the SNR Margin Alarm Threshold;
attenuation is greater than the Loop Attenuation
Alarm Threshold
Solid Red Synchronized with a SNR margin of 0 dB
4 Flashing Red Flashing once per second indicates synchronization
with a SNR margin of 0 dB; attenuation is greater than
the Loop Attenuation Alarm Threshold
Solid Green A loopback is active at the H4R towards the H4TU-R
Solid Yellow A loopback is active at the H4R towards the H4TU-C
4 Flashing Yellow H4R is armed but not in loopback
For more information, refer to the Installation and Maintenance Practice (P/N 61223445L2-5) available online at www.adtran.com.
H4R CARD EDGE PIN ASSIGNMENTS
Pin Designation Description
1 GND Ground
2 NC No Connect
3 T1 Customer Loop 1 Tip
4 R1 Customer Loop 1 Ring 10
5 T1 Network Loop 1 Tip
6 R1 Network Loop 1 Ring
239 H4R RESISTANCE
Tip-to-Ring resistance is approximately 6 Ω for each pair (with no power applied).
LOOPBACK AND CONTROL CODES
Refer to the Installation and Maintenance Practice of the H4TU-C or H4TU-R used in the
circuit for a list of loopback codes.
HDSL4 LOOP SPECIFICATIONS FOR OPTIMUM OPERATION
NOTE: The H4TU-Cs (P/N 1221401L6, 1221403L6, 1221404L6) support only one
repeater in the HDSL4 circuit.
Refer to the H4TU-C or H4TU-R Installation and Maintenance Practice for loop
parameters, including Attenuation and Resistance Budgets for span powering.
H4TU-C H4R1
1st Segment 2nd Segment
COMPLIANCE
The 239 H4R complies with UL 60950, Third Edition. The 239 H4R is intended for
installation in restricted access locations only. Ensure chassis ground is properly
connected.
Code Input
Power Code (PC)
Telecommunication Code (TC)
Installation Code (IC)
61223445L2-22A
0610
Pin Designation Description
7 NC No Connect
8 T Network Loop 2 Tip
9 R Network Loop 2 Ring
GND Ground
11 T Customer Loop 2 Tip
12 R Customer Loop 2 Ring
H4R2 H4TU-R
3rd Segment
Output
C C
X X
A –