Interquartz IQ750 - Manual (Page 43)

43
HEADSET POLARITY SWITCH
Located on the underside of the telephone (see Figure 8), this switch provides compatibility
with the two commonly-used headset wiring standards.
Position “V” suits Plantronics Vista Cords and other Headsets wired in the same
configuration (also known as “reversed” wiring mode).
Position “P” suits Plantronics P cords and other Headsets wired in the same configuration
(also known as “normal” wiring mode).
Please see Table 1 as a guide to the correct settings for most popular Headsets.
FIGURE 8 HEADSET MIC ADJUST CONTROL AND POLARITY SWITCH
Reversed headset
polarity
Normal headset
polarity
RINGER PITCH
CONTROL
HEADSET MIC
ADJUSTMENT CONTROL
RINGER VOLUME
SWITCH
MOUNT HOLES FOR
WALL BRACKET
HANDSET JACK
HEADSET JACK
HEADSET POLARITY
SWITCH
BATTERY COMPARTMENT
(OPTIONAL BATTERIES
NOT SUPPLIED)
VOLUME SLIDER