AMT/PTD/PBX/0058/4/6/EN Installation and Maintenance Manual - Aastra 5000
Page 174 01/2011 Description des sous-ensembles
4.6.4 Installation and wiring
The equipment connected to the UCV-L card has the installation details described in
Section 5.6:
• Operating console
• External music source
• Common bell (on R3 relay)
• Alarm bell (on R2 relay)