ADTRAN CSM-MB L1/L5 card with HQ+, +/-1e-10 with holdover algorithm +/-3e-10 without it, Temp stability +/-2e-10, with 1x GNSS input, 4x NTP/PTP Ethernet I/F , 1x RS-232 on RJ48 connector. Order license 1091905937-01 to activate use of GNSS L5 band. New HW revision (PCN 6944)
