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P84577 G 

Sheet 2 of 14

 

 

2.1 WIRING 

SPECIFICATIONS: 

 

Cable Size:  All terminal blocks accept #12 - #18 American Wire Gauge (AWG) for single wire connection. 

 

3.0   WIRING INSTRUCTIONS: 

 

NOTE:  

The terminal blocks on the SP4-APS

 

are removable. To remove a terminal block, pull the block straight up from the  

circuit board as shown in Figure 1. Attach wires to the desired connections, then plug the terminal block back on the board  
being careful to match and align the pins.  

 

Figure 1:  Removable Terminal Block 

 

Figure 2 shows the PC board layout with the locations of all terminal blocks. 

OUT

IN

OUT

IN

OUT

IN

24 VDC

AUDIO

RS-485

ALARM

POWER

TROUBLE

Z1

Z2

Z3

Z4

EX1 EX2

IN

CLASS

B

A

SW

2

SP4-APS

JP

1

NAC

CC

SW1

TB1

TB2

TB7

TB6

TB5

TB4

TB3

          JP1

Shorted = 70Vrms

Open = 25Vrms

D3

7

D3

2

D3

6

D3

5

D4

1

D3

3

D4

2

D4

3

D3

8

D3

4

D3

9

D4

0

D44

D45

 

Figure 2:  SP4-APS PC Board 

 

Terminals for the RS-485 connections are used with the SP4-TZC and are explained in the SP4-TZC installation instructions. 

 

3.1   Audio Zone Output Wiring 

 

The SP4-APS can be configured for either “CLASS A” or “CLASS B”. It cannot do both at the same time. The maximum 
audio power output on any zone is 40 watts. Expansion (EX1, EX2) terminals follow the Class A or B setting that applies to 
all zones. 
Instead of speakers, up to four SPB-160 or SPB-80/4 (or two SPB-320) Audio Boosters may be connected to an audio output 
zone, provided that nothing else is on that zone.  The total number of Audio Boosters combined shall not exceed 33. 

 

NOTE

:  Factory setting is for Class B Wiring. 

 

3.1.1 “CLASS A” Audio Wiring: 

 

When an installation requires “CLASS A” audio field wiring on the SP4-APS module, the Class Selector Switch (SW2) 
must be set for “CLASS A”.  

Note that no end-of-line resistors (UL Listed 10K Ohm, EOLR) are used on any of 

the SP4-APS module audio output zones as shown in Figure 3

.  Zones Z1 and Z2 are connected in Class A 

configuration as well as Z3 and Z4. Figure 3 shows the SP4-APS with SW2 and the audio field wiring set for “CLASS 
A”. 

 

The audio zone outputs are either 25Vrms or 70.7Vrms matching the audio input voltage. Remember, the SP40/2 has a 
maximum audio output to the splitter of 40 watts, while the Audio Boosters have a maximum audio output to the splitter 
of 80 watts.  

Содержание SP4-APS

Страница 1: ...SAFEPATH4 system is not in the alarm condition When the SAFEPATH4 system is in the alarm condition all telephone paging and background music inputs are silenced and the emergency message is broadcast on all zones The SP4 APS is used with the Telephone Zone Controller SP4 TZC and controls the distribution of the telephone paging and background music functions NOTE Use of the Telephone Zone Controll...

Страница 2: ...an be configured for either CLASS A or CLASS B It cannot do both at the same time The maximum audio power output on any zone is 40 watts Expansion EX1 EX2 terminals follow the Class A or B setting that applies to all zones Instead of speakers up to four SPB 160 or SPB 80 4 or two SPB 320 Audio Boosters may be connected to an audio output zone provided that nothing else is on that zone The total nu...

Страница 3: ...LASS B Note that end of line resistors UL Listed 10K Ohm EOLR are required at the end of each audio output zone even if no speakers are present on a zone End of line resistors are required on the EX1 and EX2 connections whether they are used or not Figure 4 shows the SP4 APS set for CLASS B audio field wiring The audio zone outputs are either 25Vrms or 70 7Vrms matching the audio input voltage Rem...

Страница 4: ...setting If SW2 is set for CLASS A then all zone outputs and expansion outputs must be wired for CLASS A When using the SP4 APS in CLASS B configuration end of line resistors UL Listed 10K Ohm EOLR must be used at the end of each expansion circuit 3 2 2 24VDC Wiring The SP4 APS requires 24VDC input in order to operate Wire the 24VDC from 24VDC connections on the SP40 2 or the DC OUT connections on ...

Страница 5: ...CTING ALL POWER SOURCES TO THIS UNIT FIRST FAILURE TO DO SO MAY RESULT IN DAMAGE TO THE PC BOARDS DISCONNECTING FIRST DISCONNECT BATTERY POWERAT BATTERY TERMINALS THEN DISCONNECTAC POWERAT THE POWER SOURCE RECONNECTING FIRST RECONNECTAC POWERAT THE POWER SOURCE THEN RECONNECT BATTERY POWERAT THE BATTERY TERMINALS WARNING BGM VOLUME SP4 APS MOUNTING STUDS SP40 2 BACKPLANE MOUNTING STUDS COVER STAND...

Страница 6: ...W4 J2 W7 W8 P84014 REV ZONES OUT TO SPEAKERS OR UP TO FOUR SPB 160 S OR SPB 80 4 S OR TWO SPB 320 S PER ZONE Power Limited SW1 CC 10K OHM EOLR EXPANSION OUT TO AUDIO BOOSTERS Power Limited CC ALARM INPUT Power Limited 24VDC Power Limited AUDIO Power Limited N L 120VAC INPUT Non Power Limited RUN POWER LIMITED WIRING AWAY FROM NON POWER LIMITED WIRING USING THE KNOCKOUTS ON THE RIGHT SIDE OF THE PA...

Страница 7: ...hows the mounting location of the SP4 APS Splitter to the Splitter Mounting Bracket SPMB4Z PS PS TB1 N L ADDRESSABLE PAGING SPLITTER SP4 APS SPLITTER MOUNTING BRACKET SPMB4Z 24VDC POWER SUPPLY ZO N E ZO NE IN EX1 EX2 IN OUT ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 1 ZONE 2 CLASS B WIRING CLASSA WIRING 24 VDC AUDIO ALARM RS 485 TROUBLE POWER IN OUT IN OUT Z2 Z1 Z3 Z4 IN EX1 EX2 IN OUT ZONE 1 ZONE 2 ZONE 3 ...

Страница 8: ...above the top and down the right side of the splitter module s EX1 and EX2 are not used when the SP4 APS is connected to an Audio Booster Terminate as follows CLASS A Jumper to and to CLASS B UL Listed 10K Ohm EOLR across each EX zone OUT IN OUT IN OUT IN 24 VDC AUDIO RS 485 ALARM POWER TROUBLE Z1 Z2 Z3 Z4 EX1 EX2 IN CLASS B A SW2 SP4 APS JP1 NAC CC SW1 TB1 TB2 TB7 TB6 TB5 TB4 TB3 JP1 Shorted 70Vr...

Страница 9: ... AUD IN J4 J5 AUD2 OPEN AUD2 SHORT D30 D29 TRANSFORMER 25 70 25 70 25 70 25 70 AUDIO INPUT POWER LIMITED AUDIO RETURN POWER LIMITED Battery 1 Battery 2 Battery 4 Battery 3 120VAC INPUT NON POWER LIMITED BATTERY LEADS NON POWER LIMITED PLACE WIRE RUN AT LEAST 1 4 ABOVE THE TOP OF THE CIRCUIT BOARD AND AT LEAST 1 4 FROM POWER LIMITED WIRING 1 ALARM ZONE OUTPUTS AND RS485 POWER LIMITED IN EX1 EX2 IN ...

Страница 10: ...30 D29 TRANSFORMER 25 70 25 70 25 70 25 70 Audio Zones Out POWER SUPPLY SW1 NAC EX1 and EX2 are not used when the SP4 APS is connected to an Audio Booster Terminate as follows CLASS A Jumper to and to CLASS B 10K Ohm EOLR across each EX zone 10K Ohm EOLR OUT IN OUT IN OUT IN 24 VDC AUDIO RS 485 ALARM POWER TROUBLE Z1 Z2 Z3 Z4 EX1 EX2 IN CLASS B A SW2 SP4 APS JP1 NAC CC SW1 TB1 TB2 TB7 TB6 TB5 TB4 ...

Страница 11: ...P4 Telzone Programmer software See the SP4 TZC installation sheet P84567 for further information 6 1 3 TELEPHONE PAGING MODE Paging Mode occurs when telephone paging commands are sent from the SP4 TZC to the SP4 APS Splitter s via RS 485 digital control signals See Figure 13 for location See the SP4 TZC installation sheet P84567 for further information on the RS485 connections When the addressed S...

Страница 12: ...O TROUBLE LEDS NETWORK TROUBLE LEDS RS 485 IN TRB RS 485 OUT TRB GENERAL TROUBLE LED POWER LED Figure 15 SP4 APS Power and Trouble LED Indicators Figure 15 shows the Power and Trouble LED indicators on the SP4 APS PC board 1 Ensure that the green POWER LED is ON If no LED s are lighted check the 24VDC input power 2 Verify that SW1 NAC CC switch is set to the desired position 3 Verify the SW2 CLASS...

Страница 13: ...nt SP4 APS s Subsequent SP4 APS s will have the RS485 IN LED ON RS485 OUT Open X RS485 OUT wiring open No communication to subsequent SP4 APS s Subsequent SP4 APS s will have the RS485 IN LED ON 24VDC Wiring Disconnected X All LED indicator will be OFF See Note 2 Ground Fault on any terminal except RS485 X No indication on SP4 APS Trouble LED and Ground Fault LED indicators will light on the SP40 ...

Страница 14: ...R SPECIFICATION ABUSE ACCIDENT OR OTHER OPERATING CONDITIONS BEYOND WHEELOCK S CONTROL SOME WHEELOCK PRODUCTS CONTAIN SOFTWARE WITH RESPECT TO THOSE PRODUCTS WHEELOCK DOES NOT WARRANTY THAT THE OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR FREE OR THAT THE SOFTWARE WILL MEET ANY OTHER STANDARD OF PERFORMANCE OR THAT THE FUNCTIONS OR PERFORMANCE OF THE SOFTWARE WILL MEET THE USER S REQUI...

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