Edwards 3-REMICA Assembly instructions

© 2018 United Technologies Corporation 1 / 2 P/N 387466-EN • REV 005 • ISS 15JUN18
3-REMICA Remote Paging
Microphone Installation Sheet
Description
The 3-REMICA provides remote paging capability throughout a
building or campus. Each 3-REMICA has two inputs for connecting
other remote microphone units. Cascading remote microphones in this
manner provides up to 63 stations on the paging circuit.
Note: Remote microphone units may not be cascaded more than six
deep (more than six units in a single circuit path).
The 3-REMICA occupies two slot positions in a remote annunciator
cabinet. When installed in a cabinet with an annunciator controller, the
3-REMICA must occupy the slot positions next to the controller.
The 3-REMICA housing assembly provides standoffs for mounting a
Signature single input module when the system application requires
electrical supervision. The 3-REMICA trouble relay contacts change
state when an electrical short or open is detected on either the
microphone audio or key inputs, or when power to the unit is
interrupted.
Configuration
Set the jumpers as shown in the table below. Refer to Figure 1.
When AUDIO_OUT is connected to a: JP1 JP2
3-ASU Rev 11 or earlier [1] A A
3-ASU Rev 12 or later [1] A Remove
3-REMIC series remote paging microphone B B
[1] The revision number is stamped on the front of the ASU board,
bottom right corner.
Installation
Install and wire this module in accordance with applicable national and
local codes, ordinances, and regulations. Refer to Figure 1.
Caution: Ensure the 24 VDC riser is deenergized before making cable
connections.
Note: To prevent trouble events during installation, the 3-REMICA is
shipped with 1.8 kΩterminating resistors installed in the remote
microphone key inputs. Remove these resistors when connecting
upstream 3-REMIC series remote paging microphones.
To install the 3-REMICA:
1. Remove the top module retainer bracket on the inner door of the
remote annunciator.
2. Loosen the bottom module retainer bracket.
3. Insert the 3-REMICA into the bottom module retainer bracket next
to the annunciator panel controller.
4. Tilt the 3-REMICA forward until the top touches the inner door.
5. Tighten the bottom module retainer bracket.
6. Secure the top module retainer bracket to the inner door.
7. If installed next to an annunciator panel controller, connect the
cable assembly from P3 on the annunciator panel controller to P4
on the 3-REMICA.
8. Attach the rubber stoppers provided, to the backbox studs located
directly behind the 3-REMICA assembly, to avoid shorting
components on the electronics board.
Figure 1: Card layout
Wiring
Wire the 3-REMICA as shown in Figure 2.
Notes
• All wiring is supervised and power-limited.
• Remove the 1.8 kΩterminating resistors across terminals TB1-12
and TB1-13, and TB1-16 and TB1-17 if connected to an upstream
3-REMIC series remote paging microphone.
• AUDIO_OUT and KEY_OUT wires must be enclosed in conduit.
TB1
GAIN
ADJUST
JP1
B
A
JP2
B
A
P4P3

2 / 2 P/N 387466-EN • REV 005 • ISS 15JUN18
Figure 2: Field wire connections
TB1 terminal definitions
Terminal Definition Terminal Definition Terminal Definition
1 24 VDC IN+ 6, 7 Audio Output 16, 17 Key Input 1
2 24 VDC IN- 8, 9 Key Output 18 Trouble NC
3 24 VDC IN+ 10, 11 Audio Input 2 19 Trouble C
4 24 VDC IN- 12, 13 Key Input 2 20 Trouble NO
5 Shield 14, 15 Audio Input 1
Adjusting the microphone
After the system amplifiers are properly balanced, press the push-to-
talk switch on the microphone. If you get feedback through the system
speakers, adjust the gain on the 3-REMICA until the feedback is
eliminated. See Figure 1 for the location of the gain adjustment.
Regulatory information
UL rating Common
Specifications
Voltage 21 to 27 VDC
Current 52 mA
Wiring
Size
Resistance
Capacitance
14 AWG (1.5 mm²) max.
210 Ωmax.
1 µF
A
udio Output 1 VRMS at 400 Hz to 4 kHz
Trouble relay current 1 A at 30 VDC resistive
Space requirements 2 spaces in annunciator enclosure
Operating environment
Temperature
Relative humidity
32 to 120°F (00 to 49°C)
0 to 93% noncondensing
Contact information
For contact information, see www.edwardsfiresafety.com.
24VDC_RISER_1_IN 
24VDC_RISER_2_IN 
24VDC_RISER_1_IN 
24VDC_RISER_2_IN 
24VDC_RISER_1_OUT 
24VDC_RISER_2_OUT 
24VDC_RISER_1_OUT 
24VDC_RISER_2_OUT 
47 k EOLR
(P/N EOL-47)

SLC_IN 
SLC_IN 
CT1
SLC_OUT

SLC_OUT 
Terminal block
(supplied by installer)
Terminal block
(supplied by installer)
KEY_IN
AUDIO_IN
KEY_IN
AUDIO_IN
AUDIO_OUT
KEY_OUT
Upstream 3-REMIC
series remote
paging microphone
See wiring notes above
Upstream 3-REMIC
series remote
paging microphone
Downstream 3-REMIC
series remote paging
microphone or 3-ASUx