The BD21150 and BD21151 are designed for use during the installation or activation of a new system
The BD21150 and BD21151 are designed for use during the installation or activation of a new system, or when qualifying existing pairs for new services or when troubleshooting an existing system.
BD21150: Bridges the gap between general purpose multimeters and expensive transmission test equipment; specifically designed as a multi-purpose test set for installation and maintenance work in a telephone environment.
BD21151 Features
Tests for line voltage and current, noise, balance, loss and slope, as well as providing complete Caller ID and Call Waiting testing
The Caller ID and Call Waiting features are unique in one unit and include ring time, silent time, alert-to-carrier time, mark and space dB, checksum, CAS tone dB, ACK tone dB and OSI time
Line Measurements – simultaneously monitor interaction of line voltage, loop current, and ringer voltage
Internal 430 Ohm Load – a 430 ohm resistive load is required for testing loop current for conformance standards
Loss & Slope – determined on a phone line (frequency / dB level of any tone)
Noise & Balance Measurements – uncover noise and balance problems by simultaneously displaying metallic noise, noise to ground and longitudinal balance
BD21150 Features
Line Measurements –make simultaneous measurements of line voltage, loop current, dB level and frequency.; allows user to monitor interaction between these parameters
Ohms Mode – Measure resistance of unpowered phone loops and other passive circuits
Loop Mode – measures effective resistance of a powered phone line
Loss & Slope – determines loss & slope on a phone line (frequency of tone / True RMS level)
Tone Generator – 1004 Hz, 0 dBm tone allows simple cable identification and mapping
Digit Monitor – provides monitoring and analysis of DTMF and pulse digits for verifying proper dial-up performance
SPECIFICATIONS
BD21150
DC Volts Min/Max
DC mA Min/Max
AC Volts Min/Max
Decibels Min/Max
Frequency Min/Max
DC Ohms Min/Max
Loop Ohms Min/Max
Range
±1 / +99.5
±1 / +99.5
3 / 125
-44 / +4 dBm
15 / 8K Hz
0 / 25K
100 / 5K
Resolution
0.05
0.05
1
from 0.5 to 6.0
16
100
100
Accuracy
±1.0 % f.s.
±1.0 % f.s.
±2.0% f.s.
—
16
±2.0% f.s.
—
BD21151
Minimum
Maximum
Line Measurement Mode
Line Volts
0
100 V dc
Loop current
0
100 Ma dc
Ringing Voltage
150 V ac
Loss/Slope Measurement Mode
DB Level
-34
0 dBm
Frequency
300
3000 Hz
Noise Measurement Mode
Metallic Noise
10
40 dBmC
Noise to Ground
60
94 dBmC
Longitudinal Balance
54
84 dB
Line Termination
600 Ohms + 2.2 (micro) F
Primary Tests for Installation Verification/Troubleshooting for Fault Locating
Application
BD21150
BD21151
Tone Generation
X
—
Determine Loop Length & Resistance
X
—
Identify Opens, Shorts, Grounds & Crosses
X
X
Conduct Noise measurements
—
X
Perform Loss/Slope Measurements
X
X
Perform Line Measurements
X
X
CAT NO.
MODEL
DEscRIPTION
AVAIL
PRICE
BD21150
BVA 70
Voice Network Analyzer Includes Carrying Pouch, leads, User Guide
Yes
1,198,800
Included Accessories: Carry Pouch; Cable patch cord with clip, 3ft.; Ground cable and User Guide
BD21151
CWT 150
Transmission Impairment/CIDCW Tester Includes Carrying Pouch, leads, User Guide
Yes
1,285,200
Included Accessories: Carry Pouch; Cable patch cord with clip, 3ft.; Ground cable and User Guide
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