HDSL4 239 H4R Repeater
61223445L2-22A
0610
LED STATUS INDICATORS
H4R CARD EDGE PIN ASSIGNMENTS
HDSL4
Label
Indication
Description
Pin Designation
Description
Ground
Pin Designation Description
239 H4R
LP1/LP2
NET
{ Off
No span power is present
1
2
3
4
5
6
GND
NC
T1
7
8
9
NC
T
No Connect
P/N: 1223445L2
z Solid Green
Synchronized with an Signal-to-Noise Ratio (SNR)
margin greater than the SNR Margin Alarm Threshold
No Connect
Network Loop 2 Tip
Network Loop 2 Ring
Ground
CLEI: T1R6U89D_ _
Customer Loop 1 Tip
R
4 Fast Flashing Green Flashing three times per second indicates attempt to
synchronize with the H4TU-C
R1
Customer Loop 1 Ring 10
Network Loop 1 Tip 11
Network Loop 1 Ring 12
GND
T
4 Slow Flashing Green Flashing once per second indicates synchronization
with a SNR margin greater than the SNR Margin
T1
Customer Loop 2 Tip
Customer Loop 2 Ring
R1
R
Alarm Threshold; attenuation is greater than the user
recommended Loop Attenuation Alarm Threshold
239 H4R RESISTANCE
Tip-to-Ring resistance is approximately 6 Ω for each pair (with no power applied).
z 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
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.
z Solid Red
Synchronized with a SNR margin of 0 dB
HDSL4 LOOP SPECIFICATIONS FOR OPTIMUM OPERATION
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
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.
LP1/LP2
CUST
{ Off
No span power is present
z Solid Green
Synchronized with an Signal-to-Noise Ratio (SNR)
margin greater than the SNR Margin Alarm Threshold
H4TU-C
H4R1
H4R2
H4TU-R
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
z Solid Yellow
Synchronized with a SNR margin greater than 0 dB,
but less than the SNR Margin Alarm Threshold
3rd Segment
1st Segment
2nd Segment
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
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.
z 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
Code
Input
Output
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
LL/RL
z Solid Green
A loopback is active at the H4R towards the H4TU-R
A loopback is active at the H4R towards the H4TU-C
H4R is armed but not in loopback
Power Code (PC)
Telecommunication Code (TC)
Installation Code (IC)
C
X
A
C
X
–
HANDLING PRECAUTIONS REQUIRED.
z Solid Yellow
4 Flashing Yellow
©2006 ADTRAN, Inc.
All Rights Reserved.
For more information, refer to the Installation and Maintenance Practice (P/N 61223445L2-5) available online at www.adtran.com.
Télécharger from Www.Somanuals.com. All Manuals Search And Télécharger.
|