valutazioni - 2, GPA: 3
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Facilità d'uso
FLASHING Signal Quality of 0 or No Sync on the loop. AMBER Loopbacks active. . FLASHING In-band loopbacks armed. GREEN Functioning properly. . FLASHING ES, SES, or BPV detected at either DSX or DS1 interface. ¦ Used to access the HDSL2 utilities menu tree via VT100 emulation software such as Terminal, Hyper Terminal – Private Edition, and ProComm Plus. ¦ There are two types of terminal emulation modes, Manual and Real-Time. To toggle between the two modes, type “CTRL” and “T.” To update the screens while in Manual Mode, press the space bar 3 times. Real-Time Update Mode is the default. Provision terminal port as follows: Data Rate — 1.2 kbps to 19.2 kbps Asynchronous Data Format — eight data bits, no parity (none), one stop bit, and no flow control. Hardware Flow Control – disabled. When using a PC with terminal software, be sure to disable any power saving programs. This product is intended to be installed in an enclosure with an Installation Code (IC) of “B” or “E” and in Restricted Access Locations only. Code Input Output Installation Code (IC) A — Telecommunication Code (TC) — X Power Code (PC) F C Warranty for Carrier Networks products manufactured by ADTRAN and supplied under Buyer’s order for use in the U.S. is ten (10) years. For a complete faxback copy of ADTRAN’s U.S. and Canada Carrier Networks Equipment Warranty: (877) 457-5007, Document #414. C A U T I O N C A U T I O NC A U T I O N ! SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY. CIRCUIT BOARD 6-POSITION DIP SWITCH – SW1 Provisions the unit. (Default settings are in bold.) SW1-1 Selects line coding to AMI or B8ZS SW1-2 Selects T1-framing to FRAMED or UNFRAMED1 SW1-3 Selects T1-framing to SF or ESF SW1-4 ENABLES or DISABLES the NIU loopback SW1-5 ENABLES or DISABLES the loopback timeout2 SW1-6 ENABLES or DISABLES the shelf alarm 1UNFRAMED operation ignores the setting of SW1-3 2Default timeout setting is 20 minutes when loopback timeout is ENABLED CIRCUIT BOARD 5-POSITION ROTARY SWITCH – SW2 Sets the DSX-1 Line Build Out (LBO). (Default settings are in bold.) 0 — 0-133 feet of LBO 133 — 133-266 feet of LBO 266 — 266-399 feet of LBO 399 — 399-533 feet of LBO 533 — 533-655 feet of LBO SW2 0 0133 DSX-1 LBO 533 399 26627 1 4 6 3 5 For a complete Installation and Maintenance faxback document: (877) 457-5007, Document #695. Please have your fax number available. HANDLING PRECAUTIONS REQUIRED. STATUS LEDs RS-232 DB-9 CONNECTOR COMPLIANCE CODES WARRANTY HDSL2 TROUBLESHOOTING GUIDE PRICING AND AVAILABILITY 800.827.0807 TECH SUPPORT 800.726.8663 RETURN FOR REPAIR 256.963.8722 61222003L2-22A HDSL2 TROUBLESHOOTING GUIDE PRICING AND AVAILABILITY 800.827.0807 TECH SUPPORT 800.726.8663 RETURN FOR REPAIR 256.963.8722 61222003L2-22A INDICATIONS AND PROBABLE CAUSES Front Panel or Circuit Parameters Indicate Abnormal Operation Connect a terminal or PC to the RS-232 (DB-9) craft interface located on the faceplate. The terminal must be VT100 or compatible and set for 1.2 to 19.2 kbps, 8 data bits, no parity, 1 stop bit, and no flow control. Select “3” from the ADTRAN HDSL2 Main Menu Screen and “2” from the Span Status Screen: Is signal quality fluctuating (this would occur when real-time mode is active)? Is ATTEN (pulse attenuation) > 30 dB? Are there any errors counting on the ES, SES, or UAS registers? If the above conditions do not exist, the circuit should provide quality service; however, if any of the above conditions exist, a cable problem or excessive loss situation is probable and more detailed cable testing should be done to verify all HDSL2 Loop Specifications are met. These conditions may also reflect intermittent cable faults or excessive noise impairments. If intermittent faults or noise impairments are suspected, select “5” from the HDSL2 Main Menu and review the Performance History Screen. Front Panel Indications Under Normal Operation STATUS Green Circuit Parameters Under Normal Operation LOSS < 30 dB Good signal quality with no fluctuation All HDSL2 Deployment Guidelines are met HDSL2 Loopback Control Codes Name Code Comments Arming (In-band) 11000 Signal sent in-band or over ESF data link. HDSL2 elements in disarmed Arming (ESF) 0001 0010 1111 1111 state make transition to armed state. Detection of either code results in (12 FF Hex) Smartjack loop up, if NIU loopback is enabled. Activation 1101 0011 1101 0011 Signal sent in-band. HDSL2 elements in armed state make transition to (H2TU-C) (D3D3 Hex) loop up state. Loop up state timeout is programmable from the H2TU-C. Activation 1100 0111 0100 0010 (H2TU-R) (C742 Hex) Deactivation 1001 0011 1001 0011 Signal sent in-band. HDSL2 element loop-up state makes transition to (9393 Hex) armed state. Disarming (In-band) 11100 Signal sent in-band or over ESF data link. HDSL2 elements in any state Disarming (ESF) 0010 0100 1111 1111 make transition to disarmed state. (24FF Hex) Arming Timeout N/A 2 Hours Loop-up Timeout N/A HDSL2 element in loo...