SAGE INSTRUMENTS 930I Communication Test Set

The SAGE INSTRUMENTS 930i is a versatile communications test set engineered for voiceband testing across analog and digital trunks, cellular test lines, and hybrid networks. It combines laboratory-grade VF TIMS (Transmission Impairment Measuring Set) with full BERT (Bit Error Rate Tester) capabilities, RS-232 control, and dual-channel simulation and monitoring. Deploy it at IADs, gateways, switchrooms, PBX closets, demarcation points, and production environments to isolate complex signaling faults and validate transmission performance.

Technical Specifications

• Level and frequency measurements from 20 Hz to 5000 Hz


• Psophometric and 3 kHz flat-weighted noise measurements


• Signal-to-noise ratio (SNR) and noise-to-ground quantification


• Return loss for 2-wire and 4-wire topologies


• Frequency sweep capability


• Programmable dual-tone generator (level, frequency, cadence)


• Programmable echo canceller disabler tone


• 100/102 test line support -# E1 Digital Interface


• 2.048 Mbit/s E1 support with PCM30/31, CRC4, and HDB3/AMI line codes


• Internal high-stability clock or loop-timed synchronization


• Terminate, dual-direction drop, insert, and monitor modes


• Real-time A, B, C, and D bit display and control


• aLaw and uLaw encoding


• Full-rate and 64 kbit/s BERT measurements per G.821 and M.2100


• Alarm and error generation/detection


• DS0 loopback with gain control


• Protected monitor point voltage measurement -# Analog Signaling


• Loop start and ground start (2-wire/4-wire) with contact closure, normal, and reverse battery


• E&M Types I–V with send-M and send-E signaling


• Dry contact, wink signaling with detection and timing


• Delay and immediate dial modes


• DP, MF, and DTMF addressing -# E1 Signaling


• POTS off-hook line and DTMF register signaling


• R1 support

Key Features Simultaneous dual-side monitoring and simulation isolates signaling and transmission faults in complex networks. RS-232 control enables remote operation and integration with test automation frameworks. Hybrid analog/digital architecture supports legacy voiceband circuits and modern digital trunks without topology constraints.

Typical Applications Telco gateway troubleshooting, PBX/IAD commissioning, carrier demarcation acceptance testing, cellular interconnect validation, production line regression testing.