Overview The IDM-1A is a E1 DXC multiplexers device with high qualities, providing voice telephony and data services for customers over 1*E1 link. All time slots can be assigned freely for any service interface, voice telephony and data services interface including: FXS/FXO card, 2/4-line E/M card, OW telephone card, magnetic-stone telephone card, RS232/485/422 card, V.35 card and 10Base-T card. IDM-1A is widely used in PSTN, banks, police offices, and many other private networks. Features 1. 19 inch and 1U standard chassis with 15 interface slots 2. Available voice interfaces card(n x 64Kbps): FXO, FXS, E&M, FXS-FXS(hot-line) 3. Available data interfaces card(n x 64Kbps): RS232/485/422, V.35, 10Base-T 4. Flexible configuration for different interface and quantity 5. Maximum Capacity: 30 channel voice telephone 6. Selectable internal clock and external clock 7. Complete alarm indicators 8. Standard with ITU-T G.703/G.704/98、G.706 and G.732 9. Power supply: -48VDC or 220VAC 10. Consumption: less than 30W