Product Highlights • Combines multiple service testing capabilities in a single test instrument • Performs extensive testing for services from DS0 to DS3 • Enables VF circuit testing from a digital access point • Provides protocol testing by verifying both layer 2 and layer 3 communications for GR-303, ISDN PRI, and SS7 protocols • Allows remote access and control from Windows®-based systems • Includes field-upgradeable software and hardware options • Offers an established reputation for reli- able testing and proven performance Application Highlights • Perform standard T1 BER testing and signal analysis measurements • Drop and insert on any of the 24 channels from any T1 access point • Scan any combination of the 24 channels on a T1 circuit for signaling activity and seize the first active channel for analysis of digits and supervisory events • Perform PBX emulation and digit and events analysis to verify proper switch translations • Qualify voice-grade circuits from any dig- ital access point by measuring C-message, C-notch, 3 kHz flat, 3 kHz-notch, and signal noise on any PCM channel in the T1 • Qualify STS-1 and DS3 circuits with an array of BERT patterns for both M13 and C-bit framing • Monitor and test DDS circuits from a T1 access point • Utilize preprogrammed loop codes for intelligent repeaters to sectionalize span problems • Monitor SS7, GR-303, and ISDN PRI protocols to verify the health of the link and potential protocol problems