Hicom 110 MDF
Keystation and Single Line telephones are connected to blocks X7 - X10 (a,b,c,d)
Central ringer connected to block X10 (W1 & W2)
Trunks are connected to block X4 (AL1 & BL1 - AL4 & BL4)
External Paging is connected to block X10 (PA1 & PA2)
External Music on Hold is connected to block X10 (MOH1 & MOH2)
S1 is the reset button - warm start
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