EST SFS1-CPU Assembly instructions

© 2013 UTC Fire & Security Americas Corporation, Inc. 1 / 8 P/N 3101773-EN • REV 04 • ISS 05AUG13
SFS1-CPU Main Board Installation Sheet
Description
The SFS1-CPU Main Board processes all information from
modules installed in the same cabinet and from other control
panels in the life safety network. In addition, the SFS1-CPU
Main Board provides:
•Identification of hardware and software faults, and ground
fault detection
•Common alarm, common trouble, and common
supervisory relay outputs
•One signaling line circuit (SLC), with the option of adding a
3-SDC1 card to provide a second SLC
•An Ethernet connection for panel programming and
diagnostics (requires an optional SFS1-ETH1 card)
•Connections for the network data and digital audio risers
(requires an optional 3X-NET8, 3-NET, 3X-FIB8, or
3X-FIB card)
•Connections for R-Series remote annunciators
•Connections for communication with FireWorks
workstations
•Connections for communication with a building
management system (requires an optional field server
bridge)
Installation
WARNING: Electrocution hazard. To avoid personal injury or
death from electrocution, remove all sources of power and
allow stored energy to discharge before installing or removing
equipment.
Cautions
•Circuit boards are sensitive to electrostatic discharge
(ESD). To avoid damage, follow ESD handling
procedures.
•If removing the SFS1-CPU main board, first pull out the
four plungers securing it to the electronics chassis. Failure
to do so may result in damage to the main board.
To install the SFS1-CPU:
1. Install any cards required as described on the installation
sheets received with the cards.
2. Connect the data ribbon cable (P/N 250189-01) to J17 on
the back of the SFS1-CPU and the power supply cable
(P/N 250187-01) to J15. See Figure 1.
3. Feed the cables between the chassis rails. See Figure 2.
4. Connect the loose end of the data ribbon cable to J1 on
the PS10-4B power supply and the power supply cable
to J2.
5. Align the SFS1-CPU plungers and any option card with
the plunger holes and card guides on the electronics
chassis as shown in Figure 2.
6. Gently push the SFS1-CPU card until it is firmly seated,
and then press the four plungers into place.
Wiring
Connect the SFS1-CPU field wiring as shown in Figure 3
through Figure 13. See Figure 1 and Table 1 for the
connectors and terminals on the SFS1-CPU.
Notes
•General wiring notes:
•All field wiring connections to the SFS1-CPU are
made using plug-in terminal blocks.
•Maintain 0.25 in. (6 mm) separation between power-
limited and nonpower-limited wiring at all times. Keep
nonpower-limited wiring in the shaded area shown in
Figure 13. Secure the wiring to the cabinet using
nylon cable ties.
•Wiring is power-limited.
•Network data and digital audio wiring notes:
•Network data and digital audio wiring is supervised
and unshielded.

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•When connecting the network data riser, always wire
the Network B (isolated) terminals on one SFS1-CPU
module to the Network A (nonisolated) terminals on
the next. See Figure 5.
•SLC wiring notes:
•SLC wiring is supervised.
•SLC2 (TB2) wiring is configured the same as SLC1
(TB1).
•When connecting SLC wiring, if shielding is used it
must be continuous, terminated at the shield terminal,
taped throughout the entire circuit, and free from earth
ground.
•SLC AUX power wiring is unsupervised.
•SLC AUX power on loops 1 and 2 is nonisolated and
not used for loop smoke power.
•SLC AUX power on loop 2 (TB2) is available whether
or not a second 3-SDC1 card is installed.
•SLC smoke power (SMK PWR) on loop 2 (TB2) is not
available unless a second 3-SDC1 card is installed.
Figure 1: SFS1-CPU terminals and connectors
(1) SFS1-CPU front view
(2) SFS1-CPU back view
Table 1: SFS1-CPU terminals and connectors
Label
Description
Label
Description
J1
Not used
J15
Power supply cable connector
J2
RJ-45 Ethernet cable connector
J17
Data ribbon cable connector
J3
Ethernet adapter card connector
J19
RJ-11 telephone jack
J5
Not used
J21
Not used
J6 NETWORK
RS-485 network and fiber network
option card connector
TB1 LOOP CIRCUIT 1
Loop 1 signaling line circuit wiring
terminal
J7 LOOP CIRCUIT 2
Data circuit card connector for
signaling line circuit 2
TB2 LOOP CIRCUIT 2
Loop 2 signaling line circuit wiring
terminal
J8 LOOP CIRCUIT 1
Data circuit card connector for
signaling line circuit 1
TB4
Common relay wiring terminal
J9
LCD user interface connector
TB5
Network wiring terminal

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Figure 2: Installing the SFS1-CPU
(1) Electronics chassis
(
2) Plungers (4X)
(
3) Option card guide
(4) Data ribbon cable (P/N 250189-01)
(5) Power supply cable (P/N 250187-01)
(
6) Exploded view of connectors J1 and J2 on the PS10-4B
(
7) PS10-4B power supply protective cage is installed here for ULC applications
Figure 3: Class B SLC wiring (TB1/TB2)

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Figure 4: Class A SLC wiring (TB1/TB2)
Figure 5: Network data riser wiring (TB5)
(1) Class A only
Figure 6: Class B digital audio riser wiring (TB5)
(1) Primary 3X-PMI audio data

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Figure 7: Class A digital audio riser wiring (TB5)
(1) Primary 3X-PMI audio data
Figure 8: RS-485 bus wiring for remote annunciators (TB5)
(1) Class A only
Figure 9: Common relay wiring (TB4)
Legend
(1) Trouble circuit
(2) Alarm circuit
(3) Supervisory circuit
(4) External trouble input circuit
(5) External alarm input circuit
(6) External supervisory input circuit
Notes
•Common relay wiring is unsupervised and power-limited only when connected to a power-limited source.
•For common relay wiring, the end-of-line resistor (EOLR) is determined by the initiating device circuit requirements.
•Common trouble relay operation does not include AC trouble delay functionality. As such, it cannot be used for reporting AC troubles off
premises. To report AC troubles off premises, use a 3-MODCOM Modem Communicator Module.

6 / 8 P/N 3101773-EN • REV 04 • ISS 05AUG13
Figure 10: RS-232 wiring for serial printers (TB5)
Legend
(1) Supervised serial printer (3=RX, 7=Common, 20=DTR)
(2) Unsupervised serial printer (2=TX, 3=RX, 7=Common)
(3) Front view of male DB-25 connector
Notes
•Locate a supervised serial printer in the same room as the equipment to which it connects.
•Locate an unsupervised serial printer in the same room of the equipment to which it connects, and enclose wiring in conduit or equivalent
protection against mechanical injury.
•RS-232 wiring is approved for connection of fire alarm or ancillary equipment; however, both applications cannot be supported on the same
connection or wiring.
Figure 11: RS-232 wiring to ancillary devices
Legend
(1) To the COM terminal on listed equipment
(2) To the RxD terminal on listed equipment
(3) To the TxD terminal on listed equipment
Note:RS-232 wiring is approved for connection of fire alarm or
ancillary equipment; however, both applications cannot be supported
on the same connection or wiring.
Figure 12: Smoke power and AUX SLC wiring (TB1/TB2)
Legend
(1) Smoke power to SIGA-UM or SIGA MAB for a two-wire
smoke detector
(2) External equipment with compatible ratings
Note: AUX power wiring used for fire functions cannot be shared with
any device performing ancillary functions.
AUDIOAUDIO AUDIOAUDIO
B INB IN B OUTB OUT
++ -- ++ --
AA BB
RS-485RS-485
++ -- ++ --
RS-485RS-485 RR
XX
11
TT
XX
11
TT
SS
11
RR
OO
MM
11
CC
BUSBUS BUSBUS
3 3
27
20
7
(3) (3)
(1) (2)

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Figure 13: Power-limited and nonpower-limited wiring
(1) Nonpower-limited wiring area
(2) Power-limited wiring area
(3) Battery area
LED indicators
The SFS1-CPU main board provides several LEDs that
indicate activity on a communication path. See Figure 14 for
the LED locations on the main board and Table 2 for LED
descriptions.
Figure 14: SFS1-CPU LEDs
Table 2: SFS1-CPU LED descriptions
LED
Descriptions
DS1
Option card RX activity
DS2
Option card TX activity
DS7
Loop 1 Class A activity
DS8
Loop 2 Class A activity
DS9
Network data RX Class B activity
DS10
Network data TX Class B activity
DS11
Network data RX Class A activity
DS12
Network data TX Class A activity
DS13
Loop 1 Class B activity
DS14
Loop 2 Class B activity
DS15
Remote annunciator data right TX activity
DS16
Remote annunciator data right RX activity
DS17
Remote annunciator data left TX activity
DS18
Remote annunciator data left RX activity
DS19
Ethernet link activity
DS20
Ethernet collision activity
Specifications
Voltage
24 VDC
Current
Standby
Alarm
115 mA
115 mA
Common relays
Quantity
Type
Rating
3 (alarm, supervisory, trouble)
Form C
30 VDC at 1.0 A, 1.0 PF
AUX power output
Type
Voltage
Current
Regulated and power-limited
24 VDC nom., continuous or resettable
1.0 A each circuit, 1.0 A total
RS-232 circuit
Baud rate
Length
Resistance
Capacitance
1200 to 9600
20 ft. (6 m) max.
13 Ω max.
0.7 µF max.
Remote annunciator circuit
Wire type
Length
Resistance
Capacitance
Compatible devices
Twisted-pair, 6 twists/ft. min.
4,000 ft. (1,219 m) max.
90 Ω max.
0.3 µF max.
RLCD-C, RLCD, RLED-C, GCI
RS
-485 network
communication
See the 3X-NET8 RS-
485 Network Option
Card Installation Sheet (P/N 3101768-
ML)
or 3X-NET RS-485 Network Option Card
Installation Sheet (P/N 3101771-ML)
Fiber optic network
communication
See the 3X-FIB8 Fiber Network Option
Module Installation Sheet
(P/N 3101769-ML) or 3X-FIB Fiber
Network Option Module Installation Sheet
(P/N 3101971-ML)
Ethernet communication
See the 3X-ETH1 Ethernet Adapter Card
Installation Sheet (P/N 3101775-ML)

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Signaling line circuit
See the 3-SDC1 Signature Data Circuit
Card Installation Sheet (P/N 3101772-ML)
FireWorks communication
See the FireWorks UL5 Workstation
Installation Manual (P/N 3101492-
EN) and
MN-COM1S RS-232 to Ethernet Interface
Installation Sheet (P/N 3101492-EN)
Building management
system
communication
See the FSB-PC2 and FSB-PCLW
Communication Bridge Installation Sheet
(P/N 3102007-EN)
Wire size
12 to 18 AWG (2.5 to 1.0 mm²)
Ground fault impedance
10 kΩ
Operating environment
Temperature
Relative humidity
32 to 120°F (0 to 49°C)
0 to 93% noncondensing
Note:
For battery calculations, standby and alarm currents include all
listed primary power supplies.
Regulatory information
Manufacturer
Edwards, A Division of UTC Fire & Security
Americas Corporation, Inc.
8985 Town Center Parkway, Bradenton, FL
34202, USA
Year of
manufacture
The first two digits of the date of manufacture
(located on the product identification label) are
the year of manufacture.
FCC compliance
This device complies with part 15 of the FCC
Rules. Operation is subject to the following two
conditions: (1) This device may not cause
harmful interference, and (2) this device must
accept any interference received, including
interference that may cause undesired
operation.
Environmental
class
UL: Indoor dry
Contact information
For contact information, see www.est-fire.com.