Alpha Technologies IP Bell - 02C Operations Instructions Page 8

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IPDP - installation and operating instructions
8
Picture 1 Basic module - motherboard
The relay connection is shown on pict. 2.(page 9) The NOdesignation
means an idle-disconnected contact, COMmeans a pin contact (middle) and
NC means an idle-connected contact. The contacts of both relays are
galvanically isolated each other and from other circuits as well. The variants of
relay connection are shown on picture. 3 and 4.( page 10)
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