Terminals on the Master Control Board (MCB) Descriptions of MCB terminalsTerminals Description24V, 0V, B and A These terminals accept the connection of a repeat indicatorpanel (Port 0). Also the power terminals may be used on aNetwork node to supply BACnet Gateway.NC, C and NOAux 1- 2-setsAux 2 - 1setThese are auxiliary relay contacts. The auxiliary relay 1 isnormally de-energised and operates with any fire event. Theauxiliary relay 2 is normally energised and operates(de-energises) with any fault event.0V, TX, A, RXand BThese are terminals for RS232 or RS485 (Port 1 or 2respectively).L1, 0V, L2, 0V(Loop 1 andLoop 2)These terminals accept the connection of system devices ona loop circuit that starts at L1 and ends at L2. Devices thatare connected to the loop circuit include addressable firesensor/sounders, manual call points, interface units andrepeat/mimic panels.MA1+, MA1-,MA2+ and MA2-These terminals can accept two master alarm circuits thatcan operate 24V conventional alarm devices.0V and MIP These are monitored input terminals that can accept theconnection of a switch. An active input will trigger Commandbuild 250.NC, C and NO(clean contact)These are voltage free relay contacts (output) that operatewith a fire event.4188-856_issue 7_07/15_Generic Vigilon (Compact + VA) Comms. 37Vigilon 4/6 loops & Compact (VA) panels & network nodesVigilon Compact PanelPB15REPEATINDICATORRS-48524V B A0VMaster Control BoardPB8MASTER ALARMSMA1+ MA1- MA2+ MA2-PB9MONITORED INPUTand CLEAN CONTACTS0V MIPNC C NOPB10AUXILIARY RELAY 1PB7LOOP 1L1 0V L2 0VPB14LOOP 2L1 0V L2 0VNC C NO NC C NO NC C NOPB11AUXILIARY RELAY 2PB6RS-232TX1 RX1 0V TX2 RX2BATT3PB15 PB6 PB9P2 CARD 1IC3KEYBOARDIC16POWERSUPPLYP12MA2 - FS2 250mAMA1 - FS1 250mAP1 CARD 2P16P13 SW1RESET24V B A0V TX1 RX1 0VPB8MA1+ MA1- MA2+ MA2-0V MIPNC C NOFIRMWARE BACKUPPB10 PB7L1 0V L2 0V24VFS3 200mATX2 RX2PB14L1 0V L2 0V NC C NO NC C NO NC C NOPB11SW2MODE
