Aastra OpenCom 510 User Guide - Page 79
MT+S2M1-1: Front view,
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Modules MT+S2M1-1 ■ A maximum of four MT+S2M1-1 interface cards can be configured in the entire system. ■ No settings need to be made on the MT+S2M1-1 interface card. ■ The MT+S2M1-1 interface card runs on software acquired from the system. After the card has been installed it will automatically load the required software. ■ The maximum range is 300 m. ■ The short-circuit-proof feed voltage is -42 V/7 W. Pin Assignment The following table shows the pin assignment for the RJ45 connector of the interface (labelled "S2M"; see the illustration MT+S2M1-1: Front view on page 76): Pin Number 1 2 3 4 5 6 7 8 Assignment IN a IN b Not used OUT a OUT b Not used Not used Not used The following table shows the pin assignment for the RJ45 connector of the power feed cable (labelled "-42 V"; see the illustration MT+S2M1-1: Front view on page 76): Pin Number 1 2 3 Assignment Not used Not used -42 V 77