GAI-Tronics 69609-001 Dual Page/Party Interface PCBA - Manual (Page 6)

Pub. 42004-729L2A
69609-001 Dual Page/Party
®
Interface PCBA Page: 6 of 16
f:\standard ioms - current release\42004 instr. manuals\42004-729l2a.doc
09/09
Page Balance Select (Zone A) Jumper (P6) Settings
This jumper allows the Dual PPI’s internal page balance for Zone A to be disabled in cases where use of a
page balance external to the Dual PPI is desired. Note that if an external page balance is used, however, it
must be located in proximity to the card rack. In general, this jumper should be left in the “EN” position
(internal page balance enabled). Set the jumper according to the following table:
EN Internal Page Balance is Enabled (Should be left in this position for most installations.)
DIS Internal Page Balance is Disabled.
N OTE : If this jumper is set to the “DIS” position, then the Page Balance adjustment for Zone A will have
no effect.
Page Balance Select (Zone B) Jumper (P7) Settings
This jumper allows the Dual PPI’s internal page balance for Zone B to be disabled in cases where use of a
page balance external to the Dual PPI is desired. Note that if an external page balance is used, however, it
must be located in proximity to the card rack. In general, this jumper should be left in the “EN” position
(internal page balance enabled). Set the jumper according to the following table:
EN Internal Page Balance is Enabled (Should be left in this position for most installations.)
DIS Internal Page Balance is Disabled.
N OTE : If this jumper is set to the “DIS” position, then the Page Balance adjustment for Zone B will have
no effect.
Monitor Bus Transmit/Receive (Zone A) Jumper (P8, P9, P12) Settings
These three jumpers may allow Zone A page line audio to drive the monitor bus. Alternatively, these
jumpers may allow audio on the monitor bus to drive the Zone A page line. A third option that these
jumpers provide is complete isolation between the monitor bus and the Zone A page line. These three
options are summarized in the following table:
Option P8 Setting P9 Setting P12 Setting
Isolation DIS DIS DIS
Zone A Page Audio → Monitor Bus EN EN DIS
Monitor Bus → Zone A Page line DIS DIS EN