Recommended Headsets - Northern Telecom M5212 ACD General Description, Installation And Maintenance

Table 2-3xxx
Random electronic failures and MTBF
Item
Handset Receiver
Handset Transmitter
Alphanumeric Display
Wall Transformer
Hookswitch
Electronic Components
Total
Table 2-4xxx
Mechanical Failure
Item
Handset Cord
Line Cord
Housing
All Mechanical Components

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
Plantronics
Plantronics
M5212 ACD Set General Description, Installation, and Maintenance BCS33 and up
Type Model no.
PJ HSB552-1, Supra
RJ MHB528-2, Supra
Specifications 2-3
% Failures per Year
0.9
0.5
1.2
0.3
0.3
4.4
7.6% MTBF = 13.16 years
One failure per years
70
30
200
19
Recommended
Volume Settings
00110101 VOL. I
VOL. II