wheelock SC-SPL-B, SC-SPL-R INSTALLATION INSTRUCTIONS
273 Branchport Avenue
Long Branch, N.J. 07740 Thank you for using our products.
(800) 631-2148
www.wheelockinc.com
INSTALLATION INSTRUCTIONS
FOUR ZONE SPLITTER
(FOR SINGLE CIRCUIT SAFEPATH PANELS)
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
MODEL NUMBERS:
SC-SPL-B Single Circuit Splitter - Black
SC-SPL-R Single Circuit Splitter - Red
GENERAL:
The Four Zone Splitter is designed to be used with Wheelock’s Single Circuit SAFEPATH panel and it provides a means for expanding
the number of supervised audio output zones from one to four. The Four Zone Splitters are UL Listed under Standard 864, Control
Units for Fire Protective Signaling Systems. They are listed for indoor use only. Only 1 Four Zone Splitter can be connected to the
Single Circuit SAFEPATH panel. It is to be mounted inside the Single Circuit SAFEPATH panel enclosure onto the printed circuit board
(PCB) cover. The splitter works with all of the Wheelock amplifier modules. If the splitter is used with a power amplifier, the maximum
power per zone cannot exceed what is listed in Table 1.
SPECIFICATIONS:
Table 1.
Audio Output Voltage 25.0V 70.7V 100.0V
Maximum Output Power Per Zone 25.0W 70.0W 100.0W
MOUNTING INSTRUCTIONS:
Copyright 1997 Wheelock, Inc. All rights reserved.
Figure 1.
(4)
MOUNTING
HOLES
P83439 B
Sheet 1 of 4
1. Attach the 4 male PCB standoffs to the 4 mounting holes in the Single Circuit SAFEPATH PCB cover (see Figure 1) by pushing
MOUNTING SCREW (4)
standoff into the hole until it locks into place as shown in Figure 2.
2. Place the Four Zone Splitter PCB on to the threaded stud portion of the PCB standoffs so that the studs mate with the mounting
holes on the PCB as shown in Figure 2.
3. Attach the hex standoffs to the PCB standoffs to secure the PCB to the Single Circuit SAFEPATH PCB cover.
4. Attach the Four Zone Splitter cover to the hex standoffs using the 4 mounting screws.
FOUR ZONE SPLITTER COVER
(FLANGE FARSIDE)
VIEW FROM
BOTTOM SIDE OF UNIT
Figure 2.
WIRING INSTRUCTIONS:
1. See Figure 3 for wiring diagram.
2. See Figure 4 or the Four Zone Splitter cover silkscreen for terminal block wiring designations.
HEX STANDOFF (4)
TERMINAL BLOCK WIRE ENTRY
FOUR ZONE SPLITTER PCBA
PC BOARD STANDOFF (4)
SAFEPATH PCB COVER
SYSTEM
POWER
SC SAPE
MAIN BOARD
+
21
-
+
22
-
+
23
-
+
24
-
ALL CALL
24V
AUDIO
WIRING SPECIFICATIONS:
Cable Size: 14-22 AWG
+
-
+
-
+
-
+
ALL CALL
-
+
PWR
-
+
AUD
-
Figure 3.
10K
END OF LINE
RESISTOR (EOLR)
P83439 B
Sheet 2 of 4
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