Atkinson Dynamics AD-28X-MV Manual de instruções de instalação - Página 5
Procurar online ou descarregar pdf Manual de instruções de instalação para Sistema de intercomunicação Atkinson Dynamics AD-28X-MV. Atkinson Dynamics AD-28X-MV 20 páginas.
Imprimir página24 Vdc:
When connecting the intercom to 24 Vdc, either the positive (+) supply conductor must be fused at
the source with a 1/2 A fuse or a power‑limited power source must be used.
The AD‑28X‑MV is capable of sending DC power to another unit which is mounted in a remote
location without local power. 24 Vdc is available from pins 4 and 5 of the terminal block. It can be
run along with the signal lines to an intercom in a remote location. Only one unit should share the
power supply of another unit in any installation.
Connect positive (+) supply conductor to pin #4 of terminal block. Connect negative (‑) supply
connector to pin #5 of terminal block.
Figure 7 in the wiring diagrams section shows how two intercoms can be hooked up if no remote
power is available.
SURGE PROTECTION:
Metal Oxide Varistor (MOV) devices are used to protect the audio lines and the remote control
line. The intercom must have Earth Ground terminated to it to ensure surge protection.
The output amplifier of the AD-28X-MV offers full short circuit protection and overheat protec‑
tion.
MODEL AD-28X-MV SPECIFICATIONS
Operating Voltage
Current Draw
Amplifier Specifications
Frequency Response (‑6 dB)
Input Impedance
Max. Output Voltage
Sine Wave:
Unbalanced Output
Square Wave:
Unbalanced Output
Temperature Range for Ordinary Locations
Temperature Range for Hazardous Locations
Fuse Type GMC‑1/2
Call Button Actuated Dry Contact Rating
Weight
Shipping
Net
Housing Dimensions
Conduit Entrances
Housing Material
Color
NOTE
24Vdc, 120 Vac and 240 Vac 50/60 Hz
Voltage
Operating Standby
24 Vdc
260 mA
120 Vac
163 mA
240 Vac
82 mA
150 Hz to 12 kHz
3400 Ohms
7.5 Vrms
9.5 Vrms
–31° F to +150° F (–35° C to +66° C)
+41° F to +149° F (+5° C to +65° C)
1/2 A, 250 V
500 mA at 125 Vac
1.25 A @ 24 Vdc
10 lb, 11 oz
9 lb, 4 oz
6.5" (16.5 cm) W x 9.88" (25.1 cm) H x
3.88" (9.9 cm) D
Dual 1/2"‑14 IPS
Aluminum
Gray
-3-
62 mA
70 mA
35 mA