EST SFS1-CPU Installation Sheet Download Page 1

© 2013 UTC Fire & Security Americas Corporation, Inc. 

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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. 

Summary of Contents for SFS1-CPU

Page 1: ...w 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 powe...

Page 2: ...e 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 J1...

Page 3: ...ics 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 ...

Page 4: ... 8 P N 3101773 EN REV 04 ISS 05AUG13 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 ...

Page 5: ...uit 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...

Page 6: ...n 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 AU...

Page 7: ...ator 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 ...

Page 8: ...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 manufactur...

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