15
4 Zone Class B Speaker Splitter
The Wheelock SP4Z-A/B shall be UL Standard 864, 9th edition, California State Fire Marshal (CSFM) and New York City (MEA)
approved, 2-Zone Class A or 4-Zone Class B Speaker Splitter for operation with the Wheelock, SP40S, SP40/2, SPB-80/4, SPB-
160 and SPB-320. The SP4Z-A/B shall enable a single supervised speaker audio output to drive up to two Class A supervised
speaker audio outputs or four Class B supervised speaker audio outputs. Each Class A zone shall be capable of accepting up to
40 watts and operate on either 25 or 70.7V RMS of audio input. Each Class B zone shall be capable of accepting up to 40 watts of
audio and operate on either 25 or 70.7V RMS of audio input. The SP4Z-A/B shall be capable of supporting live microphone paging,
prerecorded emergency voice evacuation messages, supervised background music and general paging announcements.
The SP4Z-A/B shall mount inside the enclosure of the SP40S, SP40/2, SPB-80/4, SPB-160 and SPB-320 and shall have power and
trouble LED’s with individual zone short and open LED indication. The SP4Z-A/B shall be capable of detecting wiring faults. The
SP4Z-A/B shall be powered by 24VDC, which is to be supplied by the SP40S, SP40/2, SPB-80/4, SPB-160 or SPB-320. Standby
and Alarm current at 24VDC shall be 15mA. Removable wiring terminals for quick connect/disconnect accepting 12–22 AWG shall
be incorporated. All output circuitry shall be power limited. Space shall be provided to allow for naming of the zones.
Addressable Paging Splitter and Telephone Zone Controller
The Wheelock Addressable Paging Splitter (SP4-APS) and Telephone Zone Controller (SP4-TZC) shall be used to control and
direct telephone paging and background music zones connected to the SAFEPATH4 Multi-Function Facility Communication System
using an RS485 connection.
The Addressable Paging Splitter (SP4-APS) shall be UL Standard 864, 9th edition and California State Fire Marshal (CSFM)
approved, addressable and supervised 2-zone Class A or 4-zone Class B Speaker splitter. The SP4-APS shall be used with
Wheelock’s SP40S or SP40/2 panel and the Audio Booster (SPB-160, SPB-80/4, and SPB-320) panels. Each SP4-APS shall have
a single audio input capable of 25 Vrms or 70.7 Vrms at a maximum of 80 Watts. The input audio power shall be distributed to the
zone connections with the total not exceeding the input and no zone exceeding 40 Watts. When audio boosters are connected,
each audio booster module shall consume 1.2 Watts from the total input power of the SP4-APS. The splitter shall be mounted
inside the SP40S, SP40/2 or Audio Booster that it is associated with, and it shall operate on 24VDC supplied by the supported
module. The SP4-APS shall contain 16 LED indicators used to monitor and troubleshoot the module.
The Telephone Zone Controller Module (SP4-TZC) shall be used to address the output zones on the SP4-APS. The SP4-TZC shall
be capable of supporting 17 SP4-APS speaker splitter modules and shall be capable of addressing all zones at once (“All Call”), a
maximum of 68 separate zones, 17 fixed zone groups and 9 programmed logical zone groups. This shall be accomplished using
two digit DTMF tones from a page port, an unused CO port, or a stand alone telephone with a loop start circuit. Also, the SP4-
TZC shall be able to select zones for background music. The SP4-TZC has the following inputs: Power, USB port, Background
Music (BGM), Page Audio in. The outputs are: Audio out and RS485 Digital Control. The basic operating parameters of the SP4-
APS shall be pre-programmed. Customized programming shall be accomplished using a USB cable and programming computer
software. The SP4-TZC shall be powered using a 24VDC filtered and regulated power supply such as the Wheelock RPS-2406.
The Controller Module assembly is mounted in a metal enclosure measuring 13”L x 7 5/8”W x 2”D.
Supervised Volume Control
The Wheelock SP-SVC shall be UL Standard 864, 9th edition approved, supervised volume control for use with the SAPEPATH
®
4
Facility Communications System.
The SP-SVC shall provide for manual volume setting for telephone paging and background music for a specific speaker or speaker
zone. The selected adjustment will not affect the volume setting of emergency prerecorded messages or live microphone usage.
The SP-SVC shall be capable of handling up to 35 watts of audio power @ 70.7 volts or 4 watts audio power @ 25 volts and shall
operate on either 70.7 or 25 volt input from an SP40S or Audio Booster. The SP-SVC shall be capable of operating in Class B or
Class A wiring configurations (for Class A, the SP4-APS is required). The SP-SVC shall receive operating power from an Audio
Booster, SP40S or SP40/2. Volume adjustment settings shall be off, 1 – 10, in 3dB increments. The SP-SVC shall be supplied
with a stainless steel mounting plate with a black knob and require a double gang, 3½” deep back box for mounting.
Remote Microphone
The Wheelock SPRM shall
be UL Standard 864, 9th edition and California State Fire Marshal (CSFM) approved, Remote
Microphone for use with the SAPEPATH
®
4 Facility Communications System.
The SPRM shall be a supervised hand held push to talk microphone and a key shall be required to enable remote microphone
use. (Same key as SP40S or SP40/2) Removable wiring terminals for quick connect/disconnect accepting 12 – 22 AWG shall be
incorporated. All output circuitry shall be power limited. Individual front panel LED’s shall be provided for indication of System
Normal, System Trouble and Alarm. Multiple on board diagnostic LED’s shall be provided. When used with the SP40S or SP40/2,
the priority level shall be number two. Remote microphone usage shall disengage background music and general paging.
Voice frequency response shall be 275 Hz - 6.5 kHz +/- 2.4 dB. Power requirements shall be 24VDC and will be supplied by the
SP40S or SP40/2. Input current for Standby shall be 26mA and for Alarm 38mA. Audio output level shall be 1.05V RMA. There
shall be a 6-wire connection to the SP40S or SP40/2. The mounting plate shall be red and measure, 8 3/4” x 5 ¼”, and shall fit
into a 4 gang back box.
Architects and Engineers Specifications
