Zyxel IES-3000ST, IP DSLAM, ITU-T K.20, Appendix C, CSA 60950, EN60950, IEC60950, UL60950, 1 x Telco-50, 15 slots
Zyxel IES-3000ST, IP DSLAM. Safety: ITU-T K.20, Appendix C, CSA 60950, EN60950, IEC60950, UL60950. I/O ports: 1 x Telco-50, Expansion slots: 15 slots