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Appendix A: Meridian Modular Telephones Page 339 of 504
Telephones and Consoles Description, Installation, and Operation
Any recording device connected to the receive path of a Meridian Modular
Telephone must meet these requirements:
• load impedance at least 8K ohms across the audio band
• connect in parallel across pins 3 and 4 of the handset/headset jack
• isolate power source from the headset/handset jack
M2006/M2008/M2008HF/M2616/M2216ACD telephones
You can use an electret headset in the handset port of the M2006, M2008,
M2008HF, M2616, and M2216ACD telephones. Choose an amplified
headset that draws power from a battery or AC transformer (power is not
provided by the telephone). The amplifier must draw less than 400 micro
amps from the telephone jack.
Figure 56
M2216ACD-1 and -2 left side showing headset jacks
electret supervisor
headset jack
carbon agent
headset jack
electret supervisor
headset jack
M2216ACD-1 (left side)
M2216ACD-2 (left side)
553-AAA07
electret agent
headset jack