Aastra AXD

Installation and Maintenance Manual - Aastra 5000 AMT/PTD/PBX/0058/4/6/EN
Description des sous-ensembles 01/2011 Page 171
Figure 4.20 illustrates the R1, R2 and R3 relays of the UCV card.
Note: The relay positions shown are the inactive states.
Figure 4.20 UCV CARD RELAY CONTACTS
R1: switching relay
R2: 'alarm relay (assignment
by MMC)
R3: reduced service relay
connection of
acommon bell
R4: "watchdog" alarm