SLK2511 - OC-48/24/12/3 Sonet/SDH Multirate Transceiver (Rev. D)

SLK2511A - OC-48/24/12/3 Sonet/SDH Multirate Transceiver (Rev. C)

SLK2511C - OC-48/24/12/3 Sonet/SDH Multirate Transceiver

SLK2511B - OC-48/24/12/3 Sonet/SDH Multirate Transceiver (Rev. D)