HP 37701B at Metrictest.com

Auto Set Up
Out-of-Service Terminal Testing
In-Service: monitor, through mode, and drop-insert testing
Digital and analog measurements including G.821
Graphical Results logging with time stamp
Time slot delay measurement
Wide selection of digital patterns for unchannelized BERT testing
VF tone and digital patterns for channelized BERT testing
Signaling bit control and capture or dialing

Fractional T1 (FT1 BERT)

N x 64 Kbs and N x 56 Kbs digital or analog pay loads

Digital Data Service (DDS)

DSOA format (2, 4, 4.8, 9.6, 38.4 and 56 Kbs)
DSOB format (requires option 004)
Multi Junction Unit (MJU) control

Subscriber Loop Carrier (SLC)

Signaling Bit Test
Digital BERT
VF Tone Drop and Insert

Extended Super Frame (ESF) data link access

Data channel drop and insert for protocal analysis
PRM decode and analysis
Loop code generation

Advanced Stress Patterns

0ctet stress patterns (53, 54, 55-daly, 72, 96, and 120 0ctets)
Bridge tap test (21 pattern sweep)
Quick test (5 pattern sweep)
User program sequence (2-7 pattern sweep)

CSU Emulation

Auto Respond
Payload and line loopback
In-band and out-of-band loop codes

Pulse Shape Measurement (option 001)

Graphical display and parametric measurement
Selection of industry standard templates

OPTIONS

Option 001 Signal and Timing Measurements

Pulse shape
- Graphical display and parametric measurements
- Selection of industry standard templates

Clock Slips
- Bit and frame timing slips
- DSX-1 reference input

Wander
- Graphical display and parametric measurements
- Maximum +99999 UI count with 0.125U5 resolution

Option 002 Datacom Accessory

Logic error and alarm measurements
RS232C, RS449 and U.35 interface
Terminal emulation
Synchronous and asynchronous timing modes
Internally generated data patterns

Option 003 Internal Battery

Three hour continuous operation
Rechargeable during AC operation

MEASUREMENTS
Errors Types: Logic errors, BPVs, frame errors (Ft and Fs bits for D4 mode, Fe bits for ESF mode, Ft bits for SLC-96 mode), CRC errors (ESF only).
Alarm seconds: Yellow alarm, pattern loss, frame loss, signal loss, AIS, excess zeros, power loss.
Display: Troublescan, G.821 error analysis, full range of error results, alarm seconds.
Recovered clock: 1.544 MHz +200ppm, resolution 1 Hz.
Pattern slip: Counts of controlled and uncontrolled slips (valid for all PRBS patterns).
Simplex current: 10 to 200 mA +1 mA. Signal level range: +6 dBdsx to -36 dBdsx.
Display: Volts, dBdsx and dBm. Round-trip delay.
High resolution: 10 ms to 0.6s +10 ms.
Normal: 1 to 670 ms +1 ms (QRSS only). Facilities data link performance report messages (FDL/PRM) For ESF and SLC-96.

T1 testing

Line codes: AMI, B8ZS.
Framing: D4, ESF, SLC-96 (Ft only), unframed.
Transmitter timing: Recovered (loop timed), internal.

Receiver impedance
Bridge: 1 kohm, line equalization.
Terminate: 100 ohm, 0 to 36 dB. Cable equalization (6,000 fE).
Monitor: 100 ohm, 0 to 30 dB flat loss equalization.
Receive level: +6 to -30 dBdsx.

Fractional T1 testing
Rates: n x 56, n x 64 kb/s contiguous or non-contiguous.
Modes: Independent transmitter, receiver; thru capability.
Timeslot check: Displays the contents of all received timeslots.

Analog drop
One user-selected DS0 timeslot within a T1 signal.

Tone generation
Level: 0 to -55 dBm0 in 5 dB steps.
Frequency: Four fixed frequencies; variable 100 Hz to 3.9 kHz.
Monitor speaker: Adjustable volume.

Signaling bit manipulation: AB or ABCD bits for line seizure.
Display: Shows AB or ABCD bits in all 24 channels simultaneously.
Channel mapping: D1D, D2, D3/D4.

FDL/PRM
Generation and decode, with counts of all events displayed graphically against time.
ESF: Meets ANSI T1.403.
SLC-96: Meets TR-TSY-000008

Transmitter loopback codes
Out-of-band (ESF datalink): Transmits line and payload CSU codes (ANSI T1.403), 4 and 5-bit Smart Jack, and user-defined.
In-band: (ESF and D4) CSU, 4 and 5-bit Smart Jack, and user-defined.
Intelligent line and office repeater: Westell, Teltrend.

CSU emulation
Manual and auto response to in-band and ESF datalink loop-up and loop-down codes.

Test patterns
PRBS: QRSS, 2¹⁵-1, 2²⁰-1, 2²³-1.
Word: All 1s of 0s, 1:1, 1:7, 3 in 24,55 octet, user-defined word (length 3 to 24 bits).
Long pattern user-defined): 8 bits to 1024 bits in 8-bit intervals.
Auto/restart: Automatic alignment to framing, line code and test pattern.
Multi-pattern tests: Bridge tap pattern suite, user-defined pattern.

Error insert
Types: Logic, BPV, Frame or CRC.
Ratios: Single, variable 10^-3 to 10^-7.
Transmitter alarms: AIS, yellow.

Test period: Continuous, timed interval.

Graphics
Graphic display or printout
Barchart: results versus 60 time period (for current or stored measurements).
Bar resolution: 1, 15, 60 minutes.

Internal storage
Results storage
Automatic, for up to 10 periods with a maximum of 99 days capacity. Results retained when instrument switched off.

Instrument settings storage
All current settings and results saved when the instrument is switched off. In addition, up to five complete, named setups stored (ten with datacom, option 002).
Printer and remote control
Connector: 25-pin female D-type RS-232-C.
Printing: Results, time, date and instrument control settings to external printer.
Remote control: Full duplex RS-232-C control via a terminal or a computer.

General
Dimensions mm (inch): 190 (7.5) high, 340 (13.4) wide, 208 (8.2) deep (including front panel cover). Battery power (option 003) adds 64 mm (2.5) to depth.
Weight: 4.5 kg (10 lb). Battery power (option 003) adds 2.6 kg (5.6 lb). Datacom (option 002) adds 0.6 kg (1.3 lb).
Operating temperature: 0 to +50 deg. C.
Supply: 85 to 265 Vac, 25 VA, 47 to 66 Hz.

Options
Pulse shape, clock slips and wander measurements (option 001)

Pulsemasks: Pub 62411, T1.403, T1.102 DB119 (New), CB119 (Old), G.703. Five pulse-stores.
Pulse shape: Width, rise time, fall time, overshoot, undershoot, level (dBdsx).
Triggers: Fails mask, meets mask, any pulse (for an isolated or truncated pulse; any pulse).
Clock slips: 0.125 UI resolution.
Wander: 15 minute, 24 hour.
Datacom testing (option 002)

MEASUREMENTS
Datacom logic errors and alarm seconds.

Transmitter and receiver frequency range: 1.544 MHz +15 Hz (synchronous mode only).
Control circuit timing analysis: Graphic display of the status of control circuits RTS, CTS, DTR, DSR, DCD and Mon (monitor in RS-232-C mode only).

Delay measurement: Between user-defined off-on or on-off transitions.

Datacom testing
Datacom interfaces: RS-232-C, RS-449 (balanced), V.35.
Terminal emulation: DTE, DCE.
RS-232-C: Breakout.
RS-449/V.35: Activity indicators.

Synchronous mode
Clock sources: Internal synthesizer, datacom interface (selectable clock inversion).
Interface clock rates: 50 b/s to 1.544 Mb/s with 11 preset rates.
Internal synthesizer rates: 600 b/s to 1.544 Mb/s with 11 preset rates.

Asynchronous mode
Interface clock rates: 50 b/s to 19.2 kb/s.
Character length: 5, 6, 7 or 8 bits.
Parity: Odd, even, 0, 1 or none.
Stop bits: 1, 1.5 or 2.

Data polarity: Normal or inverse.

Error add: Single, variable 10^-3 to 10^-5.
Datacom test patterns
PRBS: 63-bit, 511-bit, 2047-bit, 2¹⁵-1,QRSS.
Fixed: Permanent mark, alternating mark/space, FOX message.
User-defined: 3- to 24-bit word.

Internal rechargeable battery (option 003)
Sealed lead-acid battery charges when instrument is connected to ac supply.
Operating time: 3 hours (typical).
Recharge time: 6 hours (typical).