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The QuickBERT-T1 is a full featured, handheld T1 test set, featuring instantaneous detection and display of framing, line coding, errors, alarms, level, frequency and more.
The QuickBERT-T1 is a full featured, handheld T1 test set, featuring instantaneous detection and display of framing, line coding, errors, alarms, level, frequency and more.
Discontinued!
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In a single 4 lb (1.8 kg) package, the 635 includes all the basic T1 testing capabilities you would expect in a larger and more expensive tester. It performs bit-error tests, detects framing type, line coding and bit pattern, and displays signal level, frequency, clock slips, errors and alarms. The 635 transmits the most commonly used loop codes, including HDSL. Full, unframed and fractional (56k and 64k) T1 are supported, along with display of signalling and data bits and capture of DTMF digits. Plus, individual voice channels may be monitored on the built-in speaker or over a headset.
Eleven standard BERT patterns are available, including a 64-bit user-defined pattern. The 635 also includes a 'through' mode where the incoming pattern is retransmitted. Errors - including bipolar violations, logic and frame bit - can be injected to confirm proper handling by the network. Two receivers permit detection of any clock slips. Multiple receiver input types allow terminated, bridged or monitor (DSX) connections. Either recovered or internal clock references can be selected. AMI or B8ZS line coding can be transmitted and received, and SF, ESF, SLC96 and unframed framing are supported.
The 635 is compact, rugged and easy to use. Just plug it in and you can immediately see essential information without scrolling through layers of menus. The 635 automatically detects framing and line coding type and instantly displays any errors or alarms. A history indicator helps track intermittent problems.
For individual channels, the QuickBERT-T1 decodes and displays signaling and data bits associated with each of the 24 DS0s. The audio quality of the channel is quickly determined via the internal speaker or external headset. If more precise analog measurements are necessary, the frequency and level of a tone present on a channel can be displayed on the LCD screen.
The Fluke Networks QuickBERT-T1 test set makes quick and easy work of T1 facility verification and troubleshooting. Plug in this tester and instantly get essential information including framing type, line coding, BERT pattern, T1 signaling and frame synchronization status, alarm conditions, density violations, and framing loss. Error conditions are also automatically displayed such as: bipolar violations, frame bit errors, CRC errors (ESF), and bit errors in a received BERT pattern. For long-term testing, history status is provided to indicate intermittent problem conditions. And for further analysis, test results can be printed.
The QuickBERT-T1 gives you fast, in-depth test features without time lost in configuring the test or remembering setups and menus. The lightweight, rugged design makes this handheld instrument easy to use in any location.
The QuickBERT-T1 verifies bit error performance, frequency, and level of the DS1; signaling and VF performance of the individual DS0s; and general T1 performance parameters. A full-range primary T1 receiver is provided for testing low-level signals. A secondary reference receiver is also available for analysis of network synchronization and timing. Ten common BERT patterns are provided with the unit, as well as a user-selectable 64-bit pattern that may be customized. The QuickBERT-T1 can also be used in a thru mode which allows you to transmit the Rx signal back out the Tx jack.
The QuickBERT-T1 is equipped with a T1 transmitter. If significant problems have developed, an out-of-service BERT may be necessary. BERT or Fractional T1 BERT may be performed by simply connecting the unit to the facility, transmitting the appropriate loop code, and selecting a pattern. The QuickBERTT1 does the rest.
| Primary T1 Receiver | |
| Bridge Range | 6 to -36 dB |
| Term Range | 6 to -36 dB |
| Monitor Range | -15 dB to -24 dB |
| Framing | NONE, D4, ESF, SLC® 96 |
| Line Coding | AMI, B8ZS |
| Patterns | QRSS, 1 IN 7, 2 IN 8, 3 IN 24, ALL 0'S, ALL 1'S, 1:1, NET55, OCT55, DALY55, USER (default = 1:16) |
| Status/History | AMI (status only), B8ZS, Signal Present, Out of Frame, Blue Alarm (AIS), Ones Density, Excess Zeros, Yellow Alarm, DS1 Idle Signal (all Tx patterns are frame aligned), Pattern Sync Loss |
| DS0 Drop | Selected DS0 channel to eight data bit LEDs and speaker |
| DS0 Signalling Types | Robbed Bit, CCIS, E-Bit |
| DS0 Signalling Bits | A, B, C, D |
| Reference T1 Receiver | |
| Range | 0 to -36 dB |
| Compatibility | AT&T® TA24/CB113 |
| Transmitter Output | |
| Line Codes | AMI or B8ZS |
| Framing | NONE, D4, ESF, SLC96 |
| Frequency | 1544000 Hz ± 5 ppm |
| Patterns | QRSS, 1 IN 7, 2 IN 8, 3 IN 24, ALL 0'S, ALL 1'S, 1:1, NET55, OCT55, DALY55, USER, THRU |
| LBO | Fixed at 0 dB |
| Tx Clock Source | Internal, derived from received data, or external |
| Loop Codes | CSU, NIU4, NIU5, NETWRK (ESF), LINE (D4), LINE (ESF), PYLD (ESF), ARM (D4), ARM (ESF), HTU-R,HTU-C, HRE1, HRE2, NREM, NLOC, NDU1, NDU2, CREM, CLOC, CDU1, CDU2 |
| Pulse Shape | Complies with AT&T® Pub 62411 and ANSI T1.403 |
| Jitter Tolerance | Complies with AT&T® Pub 62411 |
| Connectors | |
| Rx T1 Receiver Term/Mon/Bridge | Bantam jack |
| Tx T1 Transmitter | Bantam jack |
| Ref T1 Receiver | Bantam jack |
| Auxiliary Power | DC power jack |
| Headset | 3.5 mm phone plug- stereo (for customer-provided headphones) |
| Results | |
| Display | 4 x 20 liquid crystal display (LCD) |
| Clock Slips | Positive number means reference clock faster; negative number means reference clock slower |
| Errors | BIT ERR, BPV ERR, FRM ERR, CRC ERR, FREQDEV |
| Signal | DS1 Freq, DS1 Level, DS0 Freq, DS0 Level |
| DS1 Freq Accuracy | ± 5 ppm, 32 to 104° F (0 to 40°C) |
| DS1 Freq Resolution | 1 Hz |
| DS1 Freq Range | 1544000 ± 10,000 Hz |
| DS1 Level Range | 6 dBDSX to -40 dBDSX |
| DS0 Freq Accuracy | ± 1.5 Hz |
| DS0 Level Accuracy | ± 0.2 dBm |
| Power | |
| Battery Pack | Rechargeable, nickel metal hydride (NiMH); 3.5 amp-hours |
| Battery Life | Approximately six hours of continuous operation |
| Low Battery | Red LED illuminates, indicating recharge is needed |
| Auxiliary Power | 9 - 12 VDC, 1000 mA |
| Environmental | |
| Operating Temperature | 32 to 122°F (0 to 50°C) |
| Storage Temperature | -4 to 140°F (-20 to 60°C) |
| Humidity | 95% maximum, non-condensing |
| Physical | |
| Size | 1.75" H x 5" W x 9" L (4.4 cm x 12.7 cm x 22.8 cm) |
| Weight | 1 lb, 10 oz (0.7 kg) |
For individual channels, the QuickBERT-T1 decodes and displays signaling and data bits associated with each of the 24 DS0s. The audio quality of the channel is quickly determined via the internal speaker or external headset. If more precise analog measurements are necessary, the frequency and level of a tone present on a channel can be displayed on the LCD screen.
The Fluke Networks QuickBERT-T1 test set makes quick and easy work of T1 facility verification and troubleshooting. Plug in this tester and instantly get essential information including framing type, line coding, BERT pattern, T1 signaling and frame synchronization status, alarm conditions, density violations, and framing loss. Error conditions are also automatically displayed such as: bipolar violations, frame bit errors, CRC errors (ESF), and bit errors in a received BERT pattern. For long-term testing, history status is provided to indicate intermittent problem conditions. And for further analysis, test results can be printed.
The QuickBERT-T1 gives you fast, in-depth test features without time lost in configuring the test or remembering setups and menus. The lightweight, rugged design makes this handheld instrument easy to use in any location.
The QuickBERT-T1 verifies bit error performance, frequency, and level of the DS1; signaling and VF performance of the individual DS0s; and general T1 performance parameters. A full-range primary T1 receiver is provided for testing low-level signals. A secondary reference receiver is also available for analysis of network synchronization and timing. Ten common BERT patterns are provided with the unit, as well as a user-selectable 64-bit pattern that may be customized. The QuickBERT-T1 can also be used in a thru mode which allows you to transmit the Rx signal back out the Tx jack.
The QuickBERT-T1 is equipped with a T1 transmitter. If significant problems have developed, an out-of-service BERT may be necessary. BERT or Fractional T1 BERT may be performed by simply connecting the unit to the facility, transmitting the appropriate loop code, and selecting a pattern. The QuickBERTT1 does the rest.
| Primary T1 Receiver | |
| Bridge Range | 6 to -36 dB |
| Term Range | 6 to -36 dB |
| Monitor Range | -15 dB to -24 dB |
| Framing | NONE, D4, ESF, SLC® 96 |
| Line Coding | AMI, B8ZS |
| Patterns | QRSS, 1 IN 7, 2 IN 8, 3 IN 24, ALL 0'S, ALL 1'S, 1:1, NET55, OCT55, DALY55, USER (default = 1:16) |
| Status/History | AMI (status only), B8ZS, Signal Present, Out of Frame, Blue Alarm (AIS), Ones Density, Excess Zeros, Yellow Alarm, DS1 Idle Signal (all Tx patterns are frame aligned), Pattern Sync Loss |
| DS0 Drop | Selected DS0 channel to eight data bit LEDs and speaker |
| DS0 Signalling Types | Robbed Bit, CCIS, E-Bit |
| DS0 Signalling Bits | A, B, C, D |
| Reference T1 Receiver | |
| Range | 0 to -36 dB |
| Compatibility | AT&T® TA24/CB113 |
| Transmitter Output | |
| Line Codes | AMI or B8ZS |
| Framing | NONE, D4, ESF, SLC96 |
| Frequency | 1544000 Hz ± 5 ppm |
| Patterns | QRSS, 1 IN 7, 2 IN 8, 3 IN 24, ALL 0'S, ALL 1'S, 1:1, NET55, OCT55, DALY55, USER, THRU |
| LBO | Fixed at 0 dB |
| Tx Clock Source | Internal, derived from received data, or external |
| Loop Codes | CSU, NIU4, NIU5, NETWRK (ESF), LINE (D4), LINE (ESF), PYLD (ESF), ARM (D4), ARM (ESF), HTU-R,HTU-C, HRE1, HRE2, NREM, NLOC, NDU1, NDU2, CREM, CLOC, CDU1, CDU2 |
| Pulse Shape | Complies with AT&T® Pub 62411 and ANSI T1.403 |
| Jitter Tolerance | Complies with AT&T® Pub 62411 |
| Connectors | |
| Rx T1 Receiver Term/Mon/Bridge | Bantam jack |
| Tx T1 Transmitter | Bantam jack |
| Ref T1 Receiver | Bantam jack |
| Auxiliary Power | DC power jack |
| Headset | 3.5 mm phone plug- stereo (for customer-provided headphones) |
| Results | |
| Display | 4 x 20 liquid crystal display (LCD) |
| Clock Slips | Positive number means reference clock faster; negative number means reference clock slower |
| Errors | BIT ERR, BPV ERR, FRM ERR, CRC ERR, FREQDEV |
| Signal | DS1 Freq, DS1 Level, DS0 Freq, DS0 Level |
| DS1 Freq Accuracy | ± 5 ppm, 32 to 104° F (0 to 40°C) |
| DS1 Freq Resolution | 1 Hz |
| DS1 Freq Range | 1544000 ± 10,000 Hz |
| DS1 Level Range | 6 dBDSX to -40 dBDSX |
| DS0 Freq Accuracy | ± 1.5 Hz |
| DS0 Level Accuracy | ± 0.2 dBm |
| Power | |
| Battery Pack | Rechargeable, nickel metal hydride (NiMH); 3.5 amp-hours |
| Battery Life | Approximately six hours of continuous operation |
| Low Battery | Red LED illuminates, indicating recharge is needed |
| Auxiliary Power | 9 - 12 VDC, 1000 mA |
| Environmental | |
| Operating Temperature | 32 to 122°F (0 to 50°C) |
| Storage Temperature | -4 to 140°F (-20 to 60°C) |
| Humidity | 95% maximum, non-condensing |
| Physical | |
| Size | 1.75" H x 5" W x 9" L (4.4 cm x 12.7 cm x 22.8 cm) |
| Weight | 1 lb, 10 oz (0.7 kg) |
