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1. ROBBED BIT m i 0S0 LEVEL ay ERROR SEC a CLK SuPs 2200 A B 0 000909090009 OLOW BATTERY RESULTS Top detail A P lt g iis anss G 8825 INB Actual 2 amp SIGNAL PRESENT 2 Ne Size D z OUT OF FRAME BLUE ALARM AIS ONES DENSITY Au rs D D EXCESS ZEROS YELLOW ALARM OS IDLE SIGNAL PATTERN SYNC LOSS RESTART RX a m gt a Zz w L REF RX int EXT NONE fe u LOOP UP LOOPON EF G Receive sicse v Pre SE ND is Loop Applications DSI Bit Slippage and Jitter Checking When patching the VALIDATOR RFF T1 receiver to a T1 timing source or utilizing the internal 1 544 MHz oscillator while the RX T1 receiver is patched to a MONITOR jack or bridged across a T1 line the VALIDATOR can display CLOCK SLIPS CLOCK SLIPS are calculated as CLOCK SLIPS REF clock pulses RX clock pulses counted MON ae cea By observing the slippage one can readily access whether timing is lost or TIMING jitter is present on the system This test can be carried out on any live circuit SOURCE without causing any interference Looping CSU s and NI s When patched to a T1 office repeater the VALIDATOR can send and detect loop commands to selectively loop NIU s NIU4 NIUS NTWK ESF and CSU s LINE D4 ESF and
2. 1 1 NET55 OCT55 and DALYSS A user can select any of these patterns for transmission Selecting a transmission pattern has no effect on the receiver which continuously attempts to obtain Frame and Pattern signatures The VALIDATOR illuminates LED s indicating received signal status and history These LED s include SIGNAL PRESENT SIGNAL PRESENT HISTORY FRAMING NONE D4 ESF SLC 96 AMI and B8ZS LINE CODING B8ZS HISTORY PATTERN SYNC QRSS 1 IN 8 2 IN 8 3 IN 24 ALL ZEROS ALL ONES 1 1 NET55 OCT55 and DALY55 OUT OF FRAME OUT OF FRAME HISTORY BLUE ALARM AIS BLUE ALARM AIS HISTORY ONES DENSITY ONES DENSITY HISTORY EXCESS ZEROS EXCESS ZEROS HISTORY YELLOW ALARM YELLOW ALARM HISTORY PATTERN SYNC LOSS HISTORY and DS1 IDLE DS1 IDLE HISTORY The VALIDATOR displays test results on eight seven segment LED displays Results displayed include CLOCK SLIPS BIT BPV FRAME CRC DS1 FREQ and LEVEL DSO FREQ and LEVEL and ERRORED SECONDS errors The VALIDATOR is powered by 3 1 2V 3 8A hr NiMH batteries providing approximately 6 hours of continuous operation An AC DC Power Adapter is provided for simultaneous operation and battery recharge The VALIDATOR is supplied with the following items e A C Power Adapter e Two bantam to bantam cables e User s Manual e Carrying storage case Model 324A Fton VALIDATOR Model 324A aaa BIT ERRS BPV ERRS FRM ERRS crc ERAS DSI FREO DS1 LEVEL DSO FREQ e
3. PAYLOAD ESF NETWORK ESF LINE D4 LINE ESF T1E1 4 92 HDSL Maintenance Pairgain HIGAIN proprietary and ADTRAN Results Errors Signal BIT BPV FRAME CRC ERR SEC DS1 FREQ DS1 LEVEL DSO FREQ DS0 LEVEL CLOCK SLIPS DS1 FREQ Accuracy DS1 FREQ Resolution DS1 FREQ Range 5ppm 0 to 40 C 1Hz 1544000 10 000 Hz DS1 LEVEL Accuracy DSX DS1 LEVEL Range 6 to 16dB 1dB 16 to 40dB 3dB 6 to 40dB DSX T COM LLC ErrCod 3 for an EPROM amp SRAM test failure Physical 1 75 h 5 w 9 1 1402 Power Batteries three 1 2V NiMH 1 5Ahr approx 6 hours continuous operation red LED apprx 30 min remaining Auxiliary Power 12 VDC 400 mA Environmental 32 to 122 F Operating 5 to 158 F Storage 95 max non condensing Humidity 1 5Hz 0 2dBm DSO FREQ Accuracy DSO LEVEL Accuracy SelfTest On Power Up ErrCod 1 for an EPROM test failure ErrCod 2 for an SRAM test failure ErrCod 3 for an EPROM amp SRAM test failure Physical 1 75 h 5 w 9 1 11b 100z Power Batteries three 1 2V NiMH 3 8Ahr approx 6 hours continuous operation red LED approx 30 min remaining Auxiliary Power 12 VDC 1000 mA Environmental 32 to 122 F Operating 5 to 158 F Storage 95 max non condensing Humidity 445 Indio Way Sunnyvale California 94086 Telephone 408 523 9900 FAX 408 523 9909 Email sales tcomcorporation com ww
4. PYLD ESF LINE REPEATERS T1 Transmission System Qualification Bit Error Rate Testing can be performed from the CO or the Customer premise location by either looping the other end as above or by using a test set at both SEE aes ends of the transmission system This second approach offers the advantage of VALIDATOR letting one identify the direction in which a fault exits An extensive family of test patterns is provided to stress the transmission system zo gt z gt z j l y Z Z T zZ T HDSL Looping and Transmission Testing The VALIDATOR generates T1E1 4 92 PROP PairGain HiGain and ADTRAN loop commands for testing HDSL transmission systems Each element of the HDSL transmission system can be selectively looped to isolate H failures to a particular system element Looping can be implemented from either HA VALIDATOR rd or stress patterns can be generated from both ends of the system for through VALIDATOR mode transmission testing Specifications Input 6 36dB AMI and B8ZS gt 1000 W Bridge 100 W Terminate 100 W Monitor Range Line Code Impedance Indicators Display LED s BPV Frame CRC6 DS1 Frequency DS1 Level dBSX and volts Frame Format NONE D4 ESF SLC96 Alarms BPV FRAME CRC6 DS1 Frequency Low Battery Compatibility ANSI T1 403 AT amp T PUB62411 Primary T1
5. Receiver Bridge gt 1000 W Term 100W 5 Monitor 100 W 5 Bridge 6 to 36dB Term 6 to 36dB Monitor 100W 5 Tx and Rx Framing NONE D4 ESF SLC 96 Tx and Rx Line Coding AMI B8ZS Tx and Rx Patterns QRSS 1 IN 8 2 IN 8 3 IN 24 ALL ZEROS ALL ONES 1 1 NET55 OCT55 DALY55 all Tx Patterns are frame aligned Status History B8ZS Signal Present Out of Frame Blue Alarm AIS Ones Density Excess Zeros Yellow Alarm DS1 Idle Pattern Sync Loss DSO Drop Selected DSO channel to 8 data bit LED s and speaker Input Impedance Range DSO Signaling Types Robbed Bit CCIS Selectable Fron Telecommunications Instrumentation 314A ALARMS with History Signal Present Out of Frame Blue Alarm AIS Ones Density T1 403 1 1992 Excess Zeros gt 15 Zeros Yellow Alarm Results Errors DS1 FREQ Accuracy DS1 FREQ Resolution DS1 FREQ Range Line Level DS1 Level Range SelfTest On Power Up BIT BPV Frame CRC 5ppm 0 C to 40 C 1 Hz 1544000 10000 6 to 16dB 1dB 16 to 40dB 3dB 6dB D to 40 DSX ErrCod 1 for an EPROM test failure ErrCod 2 for an SRAM test failure 324A DSO Signaling Bits Reference T1 Receiver Input Impedance Range Compatibility Transmitter Output LBO Tx Clock Source A B C D 100W 5 0 to 36dB AT amp T TA24 CB113 Fixed at 0 dBDSX Internal derived from received data or external Loop Codes CSU NIU4 NIU5
6. ZANDIITNALUIN T1 Compliance Monitor The Model 324A VALIDATOR is intended for use by service technicians to qualify and maintain a variety of DS1 transmission systems and equipment It has all the essential features needed by the service technician to reliably perform his tasks including testing the latest technology HDSL transmission systems Like all T COM products the VALIDATOR has a clear intuitive user interface that requires minimum training for effective use Both instruments are the most cost and weight effective on the market today They can withstand the rigors of outside plant use gt while performing sophisticated testing with the minimum of operator controls Ask your T COM sales representative L gt l VALIDATOR for a demonstration We are T1 DSO Analyzer confident you will be delighted es with these products About the VALIDATOR The T COM Model 324A VALIDATOR is a low cost 2 395 complete light weight only 11b 10oz hand held test set designed to provide all the essential capabilities a test technician needs to reliably qualify and maintain and troubleshoot a variety of DS1 transmission systems and equipment in the CO the outside plant or in customers premises The VALIDATOR contains a DS1 receiver providing real time impairment diagnostics with dedicated LED s on any DS1 signal observed when patched to DSX 1 access jacks OUT or monitor or bridged across a T1 line The receiver provide
7. s level and frequency measurement of the T1 signal it can also indicate bit slippage if a clock signal or another T1 signal is supplied to the reference receiver At the press of a key the reciever provides comprehensive impairment statistics The receiver automatically recognizes the framing format NONE D4 ESF SLC 96 of the monitored signal It also automatically identifies the test pattern presented These features not only contribute in simplifying the operation of the set they also make it foolproof The Validator receiver displays the frequency and level of selected DSO channels Signaling Types ROBBED BIT and CCIS are operator selectable Signaling Bits A B C and D are displayed for a selected DSO channel and selected Signaling Type The VALIDATOR transmitter can deliver a variety of standard test patterns to stress and qualify a T1 transmission system The transmitter can also be used for sending various loop codes CSU NIU4 NIUS PYLD NTWK LINE T 4 92 and PairGain HiGain The receiver and the transmitter can be used completely independently or in combination When used independently the receiver can monitor for example an ESF 3 24 pattern while the transmitter delivers an ESF QRSS pattern The VALIDATOR transmitters can inject single logic bit errors or a 1 4 logic bit error rate The VALIDATOR can transmit and obtain pattern sync on a variety of BERT PATTERNS including QRSS 1 IN 8 2 IN 8 3 IN 24 ALL ZEROS ALL ONES
8. w tcomcorporation com Printed in USA 04 99

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