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Chapter 7 — Meridian Modular Telephones
Figure 10
M2616 with Display Module and Key Expansion Module
553-3121-100
Standard 2.0
The headset should be designed to work with a telephone jack with these
characteristics:
Transmit interface: +5 V through 10K DC bias resistance with maximum
current of 500 micro amps. The differential input impedance is 10K ohms.
Connects to pins 2 and 5 of the handset jack.
Receive interface: single ended output with output impedance of 180 ohms.
Connects to pins 3 and 4 of the handset jack.
September 1998
553-1857
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