Toshiba CTX28 manual External Page with Biou Interface, 12-10

Peripheral Installation

External Page with BIOU Interface

External Page with BIOU Interface

Up to two BIOU interfaces can be installed for connecting external page equipment. Each BIOU can provide up to four unique page zones for a total of eight page zones maximum per system. The BIOU interfaces can be installed in the main cabinets and/or any remote cabinet. Each BIOU provides a 600ohm, non-amplified page output and an 8 ohm, 3-watt amplified page output. Only one type of page output, amplified or non-amplified, can selected per BIOU in a given installation. The BIOU also provides a control relay which can be used to mute external BGM when the external page circuit is active (see Figures 12-8~12-12for connection diagrams).

Page, BGM

or Night Ringing switched in by System Processor

System

Back Plane

			66 Block Wiring
				Jacketed
BIOU (1 or 2)				Twisted Pair
				24 AWG
600Ω Transformer				HESB
	SPTO	38, BK-GN		or
	SPRO	13, GN-BK		External
				Amplifier
				and Speaker

SPO

SW600 (Select SPO or SP1)

SP1

SP Level Control

3 Watt Amplifier

	SPT1	50, V-S		HESB
				or
	SPR1	25, S-V		External
				Speaker
			(8ohm minimum)
5605

Figure 12-9 Single Zone Page Options

A separate external BGM source can be connected to a building’s external Page speakers using the BIOU interface. This enables the BGM sent over the external page speakers to be different from the BGM sent to telephone speakers (see Figures 12-10) for separate BGM over external Page connections).

	BIOU (1 on 2)	MDF		External
Night Ring	1			Paging Amp
		SPT (38)	BK-GN
and Page				Input1	Output
Backplane
from KSU	600Ω	SPR (13)	GN-BK
	B
BGM Mute Relay 2				Mute 2
	M
				Input 2
				BGM
				Music
				Source
					5601

Figure 12-10 Separate BGM Over External Page

12-10 Strata CTX I&M 06/04