7311S-GF-255R-125M-NSA3346B 7311S-GF-505X-148.42579M-NSA33 7311S-GF-505X-50MHZ 7311S-GG-255R-125M-NSA3346D 7311SS 7312 7312 BECBP 7312 BEGAM 7312 LF 7312.6043.0