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Adtran 239 H4R Leaflet

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JOB
A
ID
239 H4R
CLEI: T1R5YP3D_ _
239 H4R
1221445L1
LP1
NET
LP2
LP1
LP2
LL  RL
(Y)  (G)
/
CUST
61221445L1-22B
0205
CARD EDGE PIN ASSIGNMENTS
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.
■  For a complete Installation and Maintenance Practice (P/N 61221445L1-5) faxback: (877) 457-5007, faxback Document 755.  Please have your fax number ready.  ■
C A U T I O N 
C A U T I O N ! 
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
STATUS LEDs
LP1/LP2 NET
●
●
Off 
No span power present
●
Solid Green
Synchronized with an SNR margin greater than the user defined SNR 
Margin Alarm Threshold
✷
Fast Blinking (Blinking 3 times per second) Attempting to synchronize with the 
Green
H4TU-C
✷
Slow Blinking (Blinking 1 time per second) Synchronized with an SNR margin 
Green
greater than the user defined SNR Margin Alarm Threshold and the 
pulse attenuation is greater than the user defined Loop Attenuation 
Alarm Threshold
●
Solid Yellow
Synchronized with an SNR margin greater than 0 dB but less than 
the user defined SNR Margin Alarm Threshold
✷
Slow Blinking Synchronized with an SNR margin greater than 0 dB but less than the 
Yellow
user defined SNR Margin Alarm  Threshold and the pulse attenuation 
is greater than the user defined Loop Attenuation Alarm Threshold
●
Solid Red
Synchronized with an SNR margin of 0 dB
✷
Slow Blinking (Blinking 1 time per second) Synchronized with an SNR margin of 0 dB
Red
and the pulse attenuation is greater than the user defined Loop 
Attenuation Alarm Threshold
LP1/LP2 CUST
●
●
Off 
No span power present
●
Solid Green 
Synchronized with an SNR margin greater than the user defined SNR 
Margin Alarm Threshold
✷
Fast Blinking (Blinking 3 times per second) Attempting to synchronize with the
Green
H4TU-R
✷
Slow Blinking (Blinking 1 time per second) Synchronized with an SNR margin 
Green
greater than the user defined SNR Margin Alarm Threshold and the 
pulse attenuation is greater than the user defined Loop Attenuation 
Alarm Threshold
●
Solid Yellow 
Synchronized with an SNR margin greater than 0 dB but less than the 
user defined SNR Margin Alarm Threshold
✷
Slow Blinking Synchronized with an SNR margin greater than 0 dB but less than the 
Yellow
user defined SNR Margin Alarm  Threshold and the pulse attenuation 
is greater than the user defined Loop Attenuation Alarm Threshold
●
Solid Red 
Synchronized with an SNR margin of 0 dB
✷
Slow Blinking (Blinking 1 time per second) Synchronized with an SNR margin of 0 dB
Red
and the pulse attenuation is greater than the user defined Loop 
Attenuation Alarm Threshold
LL/RL
●
Green 
Indicates a loopback at the H4R toward the H4TU-R is active
●
Yellow 
Indicates a loopback at the H4R toward the H4TU-C is active
✷
Blinking 
Armed but not in loopback.
Yellow
Pin No.
Designation
Description
Pin No.
Designation
Description
1
GND
Ground
7
NC
No Connection
2
NC
No Connection
8
T
Network Loop 2 Tip
3
T1
Customer Loop 1 Tip
9
R
Network Loop 2 Ring
4
R1
Customer Loop 1 Ring
10
GND
Ground
5
T1
Network Loop 1 Tip
11
T
Customer Loop 2 Tip
6
R1
Network Loop 1 Ring
12
R
Customer Loop 2 Ring
#61221445L1-22B#
239 H4R