HP / Keysight / Agilent J2900A Overview
The High Speed undercradle (J2900A) allows you to monitor all major WAN communication protocols from 50 bps to 52 Mbps: Frame Relay, ISDN, X.25, HDLC, SDLC, SNA, Sync/Async PPP, ATM-DXI and encapsulated LAN protocols running over the wide area network.
Slide-in modules provide test capability for ISDN BRI and PRI, T1, E1, E3 and DS3 ATM and Frame Relay, and J2, ATM25 and STM-1/OC-3c ATM.