Northern Telecom M5212 ACD, General Description, Installation And Maintenance

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Specifications 2-3
M5212 ACD Set General Description, Installation, and Maintenance BCS33 and up
Table 2-3xxx
Random electronic failures and MTBF
Item % Failures per Year
Handset Receiver 0.9
Handset Transmitter 0.5
Alphanumeric Display 1.2
Wall Transformer 0.3
Hookswitch 0.3
Electronic Components 4.4
Total 7.6% MTBF = 13.16 years
Table 2-4xxx
Mechanical Failure
Item One failure per years
Handset Cord 70
Line Cord 30
Housing 200
All Mechanical Components 19
Recommended headsets
Northern Telecom has fully tested the following headsets and adapters and
found them to be acceptable from both safety and performance standards:
Note: ”RJ” usually refers to headset types with electret microphones. ”PJ”
usually refers to headset types with carbon microphones. For proper operation
of the headset, ensure that the appropriate type of headset is plugged into the
matching jack on the bottom of the set.
Table 2-5xxx
Recommended headsets
Manufacturer Type Model no. Recommended
Volume Settings
Plantronics PJ HSB552-1, Supra VOL. II
Plantronics RJ MHB528-2, Supra 00110101 VOL. I