Federal Signal Corporation Atkinson Dynamics AD-26, Руководство по установке и обслуживанию

Страница: 24 / 28

24
GRN RED WHT BLK
GRN WHT
OBSER
VE COLOR CODE
GRN
RED WHT BLK
AUDIO
+ DC POWER COMMON CONTROL
AUDIO
+ DC POWER COMMON CONTROL
290A4073
PRIMAR
Y "A"
PRIMAR
Y "B"
SECONDAR
Y
3
5
2
1
3
2
2
POWER
(+) (
-
)
1K
1W
ATT
1
4
RED BRN
OR YEL
*
BLU (+ DC POWER FROM PRIMAR
Y "B")
*
BLK (CONTROL
FROM PRIMAR
Y "B")
*
Operating Principle: •
Primary normally listens to Secondary
.
•
Secondary talks to Primary hands
‑fr
ee,
without having to pr
ess a talk switch.
•
When any Primary pr
esses talk switch,
Secondary hears. Other Primary will also hear
.
•
To talk into Primary
, pr
ess talk switch and
speak into speaker/micr
ophone. Release
talk switch to listen.
•
Primary B can talk by pr
essing either the
talk switch or exter
nal switch (customer
supplied).
NOTES: 1.
Speaker/Micr
ophone
2.
Of
f/On/Speaker V
olume Contr
ol
3.
Pr
ess
‑T
o‑
Talk Switch
4.
Exter
nal Pr
ess
‑T
o‑
Talk Switch, Momentary
(e.g., foot switch)
5.
4
‑conductor/16
‑22 gauge cable. Use
shielded cable in electrically noisy ar
eas.
Gr
ound one end of the shield to “earth”
gr
ound. Gr
ound chassis of DC units to
gr
ound.
Power
Primary A
Primary B
Secondary
12
‑18
VDC
AD
‑26C
‑1
AD
‑26C
‑1
‑2
AD
‑26D
‑1
22
‑30
VDC
AD
‑56C
‑1
AD
‑56C
‑1
‑2
AD
‑56D
‑1
POWER CONNECTIONS:
BLK
+DC Power
12/24V models
WHT
Common
12/24V models
17