Faraday 8705 User manual

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P/N 315-034850FA-7
INTRODUCTION
The 8705 Conventional Zone Module interfaces an
Initiating Device Circuit of conventional devices to an
Addressable Device Circuit of an MPC-6000 or
MPC-7000 Control Unit. The 8705 can power up to thirty
compatible 2-wire, ionization or photoelectric smoke
detectors. It can also monitor an unlimited number of
contact devices such as waterflow switches,
thermal detectors, manual stations, etc.
The 8705 may be programmed for alarm verify operation.
A Status LED, visible through the cover plate, indicates the condition of the circuit. This multicolor LED displays red
for alarm, yellow for trouble, and green for normal operation.
The 8705 supports Style D (Class A) and Style B (Class B) wiring. Each module uses one address on the Address-
able Device Circuit. It does not require any mechanical address programming. Use the 8720 Programmer/Tester to
program and test the module.
PROGRAMMING
To prevent damage to the 8720, do not connect modules to the 8720 until the Addressable Device Circuit
wiring is disconnected. Only one device must be connected to the 8720 at a time.
1. Plug the programming cable of the Faraday 8720 Programmer/Tester into the two-pin receptacle on the module.
2. Set the address for the module by following the instructions in the 8720 Programmer/Tester Manual, P/N 315-
033260FA.
3. Record the device address on the label located on the module. The module can now be installed and wired to the
system.
MOUNTING
The 8705 must be installed in a UL Listed electrical box.
1. Mount the 8705 in a standard two gang electrical box. The box must have a depth of at least 3½ inches.
2. When the field wiring for the initiating devices, device loop, and 24 VDC is connected, press the 8705 into the
box and fasten it with the four screws provided.
3. Attach a dress bezel if necessary, making sure that the ALARM LED is aligned with the hole in the bezel.
INSTALLATION INSTRUCTIONS AND WIRING FOR
CONVENTIONAL ZONE MODULE
P/N 8705
Siemens Industry, Inc.
Building Technologies Division • Florham Park, NJ
Tel: [phone] • Fax: [phone]
Web: www.faradayfirealarms.com
8705 8705
FRONT BACK SIDE
ALARM
1 2 3 4 56 7 8 9
PROGRAMMING
POINTS
Figure 1
8705 Module

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WIRING
Disconnect BATTERY and AC prior to working on equipment.
Electrical Connections
After you have set the 8705 address, connect the field wiring. There are three basic connections to the 8705:
initiating devices, addressable device circuit, and 24 VDC power. All terminals are power limited.
Initiating Devices (See Figures 2 and 3)
The 8705 supports one zone of initiating devices in either Class A or Class B. The initiating devices are connected to
terminals 5–8 on the 8705 terminal block. The 8705 is a polarity insensitive module and terminals 1 and 2 can be
connected to either line of the addressable device circuit. Figure 2 shows the Class A wiring. Figure 3 shows the
Class B wiring.
24 VDC Power
The 8705 receives its power from the 24 VDC power output on the control unit or auxiliary power supply that must be
power limited and UL listed for Fire Protective Signaling use. The 24 VDC power may be wired only as Class B.
Since the 8705 monitors the power at its screw terminals, an End of Line Relay is not required for supervision.
ELECTRICALRATINGS
123456789
+
-
-
+
+
-
-
+
+
-
-
+
From the addressable device
circuit of a compatible control
unit or previous addressable
device
--- +++
Ground (See notes 4 and 5)
End of Line
Resistor
3.6K, 1/4W
P/N 140-820185
To the next addressable
device
From the auxiliary power
supply output of the control
unit or an external 24VDC
power supply that must be
power limited and UL Listed
for Fire Protective Signaling
use.
Addressable Device Circuit
Initiating Device Circuit
Supervised (See note 3)
Line 1
Line 2
Line 1
Line 2
Figure 2
8705 Initiating Devices Wiring Diagram
Style D (Class A) Installation
Figure 3
8705 Initiating Devices Wiring Diagram
Style B (Class B) Installation
123456 7 8 9
+
-
-
+
+
-
-
+
+
-
-
+
-- ++
End of Line
Resistor
3.6K, 1/4W
P/N 140-820185
From the addressable device
circuit of a compatible control
unit or previous addressable
device
To the next addressable
device
From the auxiliary power
supply output of the control
unit or an external 24VDC
power supply that must be
power limited and UL Listed
for Fire Protective Signaling
use.
Addressable Device Circuit
Not Used
Line 1
Line 2
Line 1
Line 2
Ground (See notes 4 and 5)
Initiating Device Circuit
Supervised (See note 3)
NOTES:
1. All circuits are power limited.
2. See NFPA 72 Standard for the number of normally open contact devies allowed. See
UL Compatible Two-Wire Smoke and Heat Detectors for the list of compatible
devices.
3. Initiating Device Circuit cable requirements: Wire size 18 to 14 AWG
4. If Earth Ground is available, the green wire should be connected to earth ground.
5. If Earth Ground is NOT available, the IDC wiring should be limited to the same room.
6. The 8705 draws 1mA from the addressable device circuit.
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UL Compatible Two-Wire (Circuit-Powered) Smoke & Heat Detectors
Zone Identifier - 8705
Notes:
1. These detector models may be mixed and matched as long as the total maximum standby current does not exceed 3.0 mA per
initiating device circuit. The total number of detectors on a circuit should not exceed 30.
2. This initiating device circuit is not intended to handle more than one 2-wire detector in alarm, per circuit.
3. The activation of a manual station or any other contact device, will prevent any 2-wire detector on the same circuit from
remaining activated or activating.
4. If the smoke detector has an alarm verify function, the circuit must not be programmed for alarm verify.
5. For specific wiring and installation information, read the instructions provided with each device.
6. Detector operated accessories cannot be used with the 8705.
Note:
The 8858 is considered a shorting device. The 8705 supports an unlimited number of shorting devices.

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P/N 315-034850FA-7