NEC Electra Elite IPK II System Hardware Manual page 517

Electra Elite IPK II
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System Hardware Manual
Table 11-2 ADA-U Unit Switch Settings (Continued)
Switch Setting
SW1–3 SW1–3 SW1–4
and
SW1-4 ON ON
SW1–3 SW1–4
OFF OFF
SW1–5 SW1–5 SW1–6
and
SW1–6 OFF ON
SW1–5 SW1–6
ON OFF
SW1–7 ON
SW1–8 Off
Do not connect T1 and T2 when switches SW1-3 and SW1-4

are ON.
Document Revision 3
Description
Warning Tone from recording device over
same wire pair as speech path.
Warning Tone from recorder or generator
equipment on dedicated wire pair to
recorder MIC input
Input impedance is 600 Ω.
Input impedance is less than 30Ω.
When warning tone from any device is
sent to telephone
Leave Off
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