239 H2R
| ENHANCED PSD 239 H2R | JOBAID |
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| 0111 |
STATUS LEDs | LOOPBACK AND CONTROL CODES |
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CLEI: T1R6VJWD_ _
DSL NET ● Off | No synchronization with the |
● 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 |
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✷Slow Blinking (Blinking 1 time per second) Synchronized with an SNR margin greater
Green | 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 user Yellow (1/sec) defined SNR Margin Alarm Threshold and the pulse attenuation is greater
than the user defined Loop Attenuation Alarm Threshold
FUNCTION | CODE | RESPONSE |
ARM | 11000 (binary) | |
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ARM (ESF Data Link) | FF48 (hex) or 1111 1111 |
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| 0100 1000 (binary) sent | |
| in the Facility Data Link | |
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Disarm | 11100 (binary) | All units are removed from the armed state and loopbacks will be released |
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Disarm (ESF Data Link) | FF24 (hex) or 1111 1111 |
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| 0010 0100 (binary) sent in | All units are removed from the armed state and loopbacks will be released |
| the Facility Data Link |
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D3D3 (hex) or | If received while in an armed state, the | |
| 1101 0011 1101 0011 | transmit 2 seconds of AIS(all 1s) followed by 5 seconds of loop code (D3 hex) |
| (binary) | and then 231 logic errors will be injected toward the network. The logic errors |
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| will continue to be sent in 231 bit error bursts every 20 seconds as long as the |
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| pattern continues to be detected by the |
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| the unit will remain in loopback. |
Loopdown w/out | 9393 (hex) or | Automatically releases without disarming any |
disarming2 | 1001 0011 1001 0011 (binary) loopback toward the network. |
| ● 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 |
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| Attenuation Alarm Threshold |
DSL CUST ● Off | No synchronization with the | |
| ● Solid Green | Synchronized with an SNR margin greater than the user defined SNR |
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| Margin Alarm Threshold |
| ✷ Fast Blinking | (Blinking 3 times per second) Attempting to synchronize with the |
| Green |
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| ✷ Slow Blinking | (Blinking 1 time per second) Synchronized with an SNR margin greater |
| Green | than the user defined SNR Margin Alarm Threshold and the pulse attenu |
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| ation 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 |
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| defined SNR Margin Alarm Threshold |
| ✷ Slow Blinking | Synchronized with an SNR margin greater than 0 dB but less than the user |
| Yellow (1/sec) defined SNR Margin Alarm Threshold and the pulse attenuation is greater | |
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| 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 |
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| Attenuation Alarm Threshold |
LL/RL | ● Green | Indicates a loopback at the H2R toward the |
| ● Yellow | Indicates a loopback at the H2R toward the |
Loopback Query1 | D5D5 (hex) or | Allows one to query the devices at any given time to determine whether any |
| 1101 0101 1101 0101 (binary) units are in loopback. If D5 hex is received while in a loopback state, the unit in | |
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| question will transmit the logic error count toward the network using the same |
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| methodology as identified in each of the |
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| 10 BE = H2R1, 200 BE = H2R2 and 20 BE = |
Query Loop Parameters | DBDB | If the units are armed, and the |
| (1101 1011 1101 1011) | injected into the |
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| pattern. As long as a pattern continues to be sent, errors are injected again |
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| every 20 seconds. The number of errors injected each time depends on the |
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| current status of signal quality and pulse attenuation parameters on each |
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| loop. 111 errors are injected if all HDSL receiver [points |
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| H2R #1 NET LP1/LP2, H2R #1 CST LP1/LP2, H2R #2 NET LP1/LP2, H2R #2 CST |
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| LP1/LP2, and |
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| signal quality (margin) is 6 dB or higher. 11 errors at a time are injected if any |
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| of the 12 receiver points indicate pulse attenuation is greater than 30 dB |
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| and/or signal quality (margin) is less than 6 dB. |
Loopback | D5D6 (hex) or | If received during the armed state and prior to loopback initiation, the loopback |
Override1, 3 | 1101 0101 1101 0110 | timeout override feature will automatically disable loopback timeout, i.e., the |
| (binary) | loopback will not timeout after the 120 minute default period. As long as the |
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| units remain armed, the timeout will remain disabled. When the units are |
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| disarmed, the loopback timeout will once again return to the default value. |
Span Power Disable1, 3 | 6767 (hex) or | If received during an armed state (must not be in loopback), the |
| 0110 0111 0110 0111 (binary) | span power toward the line. As long as the pattern is received, the span power will |
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| remain disabled. Once the pattern is no longer received, the |
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| span power. All units will then |
H2R1 Network | C741 | If an H2R is present and units armed, the H2R will loop up toward network, 2 |
| (1100 0111 0100 0001) | seconds of AIS (all 1s) will be sent, 5 seconds of data will pass, and then 10 bit |
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| errors will be injected into the |
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| be sent, 10 errors will be injected every 20 seconds. When the pattern is |
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| removed, the unit will remain in loopback. If the pattern is reinstated, the |
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| injection of 10 bit errors will resume at |
| C742 | ESF facility Datalink: ESF only; when sent from the network, an |
| (1100 0111 0100 0010) | network loopback is activated and a |
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
ENHANCED PSD
The Enhanced PSD 239 H2R , P/N 1221045L2, must be used in conjunction with the Enhanced PSD T200
CARD EDGE PIN ASSIGNMENTS
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| NETWORK |
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| NETWORK |
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| BYPASS |
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sent from the customer, an |
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1Units must be armed with 11000b or FF48h before this code will work.
2In order to behave like an NIU, the
3This code will be detected only if the units are armed AND there are NO loopbacks active.
NOTE: All codes listed above must be sent for a minimum of 5 seconds in order for them to be detected and acted upon.
*If NIU is enabled, then the
HANDLING PRECAUTIONS REQUIRED.
■ For a complete Installation and Maintenance Practice faxback: (877)