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Digital Audio Riser Module,
Switches and
DIP Switches
Indicators
Two 4-position switches (SW1 & SW2) allow for configuration of the D to A channel, DAR density, and
module outputs for the 4100-0622, -1341 Digital Audio Riser Module. See Table 9.
(See Caution below)
Position
*1 & 2
**3 & 4
*ON selection disallows use of this module in
the same bay as a 4100-1265 Degraded Fail-
Safe Mode Microphone Preamp (566-510) or
a 4100-1210 Analog Audio Controller (566-
218).
**Disable the Digital PDI Drive for an analog
audio system, in a distributed microphone or
distributed line level application where the
head-end audio never is used by the local
panel.
CAUTION:
Continued
Table 9. Switch Positions for the 4100-0622, -1341 Digital Audio Riser Module
1 = ON = CLOSED
0 = OFF = OPEN
SW1
Function
State
NAA
ON = Enable;
Output
OFF =
Enable
Disable
Digital
ON = Enable;
PDI
OFF =
Drive
Disable
1. All four positions of Switch 1 are set to OFF at the factory to avoid module output
damage. Positions 3 & 4 are only ON for Digital Systems. For Analog Systems,
Positions 3 & 4 MUST REMAIN OFF to avoid DAR damage.
2. If the 4100-0622 DAR Module is installed in a bay where PDI Channel 2 is driven
by a 4100-1210 Analog Audio Controller or a 4100-1265 Degraded Fail-Safe
Mode Microphone Preamp, Switch Positions 1 & 2 MUST BE OFF to avoid
damaging the NAA output.
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Position
*4
3
2
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
ON
OFF
ON
ON
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
ON
OFF
ON
*Switch SW2-4 selects DAR density.
22
SW2
Channel
DAR
Out
Density
1
OFF
1
8 ksps
ON
2
OFF
3
ON
4
OFF
5
ON
6
OFF
7
ON
8
OFF
1
ON
2
16 ksps
OFF
3
ON
4
Continued on next page
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