6 Channel E1 FXS/DPO Module (Half Size)
6 Channel E1 FXS/DPO, 2Wire w/ER, LS/GS 600/900 ohm
12 Channel E1 FXS/DPO Module (Full Size)
12 Channel E1 FXS/DPO, 2Wire w/ER, LS/GS 600/900 ohm