background image

61245023L1-5B

Section 61245023L1-5B, Issue  2

9

Insert Errors Feature

This feature is located under the BERT Tests option
of the Test menu using the front panel LCD.  This
option is only valid if the Nx64 is already running
the Test Pattern.  This feature inserts an error into
the test pattern each time the Enter key is pressed.
The error is shown in the Pattern Results option
which is also located under the BERT Tests option
of the Test menu.

Passcode

This option, located under the UTIL menu, allows
for restricted access of the Nx64 by requiring that a
passcode be entered before any options can be
selected from the front panel, while still allowing
the user to view settings without restriction.  Set the
passcode by way of the Set Passcode option under
the UTIL menu.  Then lock the Keypad option
under the UTIL menu.  In order to gain access to the
unit, unlock the Keypad option and enter the correct
passcode.

V.54 Loopback

This option is located under the Remote feature of
the Loopbacks option of the Test menu.  The V.54
Loopback command loops up the far-end Nx64
HTU-R device allowing for testing purposes.  To
enable this feature, turn on the Nx64 HTU-R LB
setting of the Remote option.  The Remote option is
under the Loopbacks feature of the Test menu.  The
unit initiating the loopback will give an indication
when the far end is looped.

Menu Screen Descriptions

On-screen abbreviations for the menu screens are
detailed in 

Table 5

.

Table 5.  Screen Abbreviations

Abbreviation

Definition

AMI ...................... Alternate Mark Inversion

BPV ...................... Bipolar Violation

CUST .................... Customer

ES ......................... Errored Seconds

ESF ....................... Extended Superframe

LBO ...................... Line Build-out

LP1 ....................... Loop 1

LP2 ....................... Loop 2

NET ...................... Network

NIU ....................... Network Interface Unit

RX ........................ Receive

S/N ........................ Serial Number

SES ....................... Severely Errored Seconds

SF .......................... Superframe

UAS ...................... Unavailable Seconds

15 M ..................... Fifteen-minute (period)

24 H ...................... Twenty-four-hour (period)

Содержание T1 Nx64 HTU-R

Страница 1: ...se this product near water for example near a bathtub washbowl sink or laundry tub in a wet basement or near a swimming pool 2 Avoid using this or other telephone equipment other than the cordless typ...

Страница 2: ...he circuit The rear panel of the T1 Nx64 HTU R has all the connections for the HDSL local loop the Customer Premises Equipment CPE power and console port The T1 Nx64 HTU R connects to the HDSL local l...

Страница 3: ...Y AA Pin Number 1 19 20 37 7 9 12 13 4 6 22 24 17 8 35 26 5 23 25 27 30 31 Signal Name Frame Ground Signal Ground Rx Common Tx Common RTS CTS DTR DSR TxD A RxD A TxD B RxD B Ext TxC A RxC A Ext TxC B...

Страница 4: ...Blinking An error detected on either end of Loop 2 will cause this LED to blink briefly Indicates an alarm condition at the local or remote HDSL unit Off No alarm condition detected Red Local alarm co...

Страница 5: ...V 11 Select this option is the DTE is connected to the DB11 connector RATE 56 64 Selects the channel data rate of either 56 kbps or 64 kbps 56 Selects 56 kbps 64 Selects 64 kbps CHANNELS Selects betw...

Страница 6: ...tenance Practice and proceed to Step 4 Step 3 Configure the second T1 Nx64 HTU R as a Master unit To properly configure the T1 Nx64 HTU R the user must configure the HDSL interface options concerning...

Страница 7: ...n 7 and 9 for an error free circuit Any signal quality indication less than 7 indicates the possibility of bit errors The Loop Loss value can be displayed by executing the following procedure Scroll b...

Страница 8: ...meters are measured and displayed for the HDSL interface These parameters are available for both Loop 1 and Loop 2 These parameters are SIGNAL QUALITY LOOP LOSS and LOOP SYNC SIGNAL QUALITY This measu...

Страница 9: ...enu In order to gain access to the unit unlock the Keypad option and enter the correct passcode V 54 Loopback This option is located under the Remote feature of the Loopbacks option of the Test menu T...

Страница 10: ...hnical Support Normal Support Hours 7am 7pm CST or Emergency Support Hours 7x24 Voice Toll Free 800 726 8663 Fax 256 963 6217 Voice 256 963 8100 Internet www adtran com HTU C INFORMATION SIGNAL QUALIT...

Страница 11: ...oise Margin 0 Poor 0 dB 10 7 BER 1 8 Marginal above 10 7 BER in dB 9 Excellent 9 dB above 10 7 BER Predicting performance based upon signal quality varies with each loop Generally a noise margin of 0...

Страница 12: ..._ _____ 1 LOOPBACK TO NETWORK AT HTU C INACTIVE 2 LOOPBACK TO CUSTOMER AT HTU C INACTIVE 3 LOOPBACK TO NETWORK AT HTU R INACTIVE 4 LOOPBACK TO CUSTOMER AT HTU R INACTIVE Press corresponding number to...

Страница 13: ...provisioned from the HTU C All DTE port configuration must be done from the front panel Type M to return to the Main Menu Figure 13 Troubleshooting Screen TROUBLESHOOTING DISPLAY _____ _____ HTU C HTU...

Страница 14: ...7 a m 7 p m CST Emergency hours 7 days week 24 hours day ADTRAN Repair CAPS Return for repair upgrade 256 963 8722 Repair and Return Address ADTRAN Inc CAPS 901 Explorer Boulevard Huntsville Alabama 3...

Отзывы: