Specifications

14
2.5.1.2 Audio Page Port Wiring
If the SP4-TZC is to be connected to an audio page port, the audio page port must provide:
(A) A 600 Ohm, low power page output, capable of passing DC loop current.
(B) Transmission of DTMF touch tone.
(C) A dry contact that is normally open, closes when paging and reopens when the page is
completed.
If these conditions are met, then connect Tip and Ring as shown in Figure 7.
- BGM
INPUT
+ BGM
INPUT
TB2
TIP PHONE
IN
RING
TB1
SP4-TZC
Telephone Input
Telephone System
Audio Page Port
TIP
RING
DRY
CONTACT
(600 OHM OUTPUT)
Figure 7
Connecting to a 600 Ohm Audio Page Port
2.5.2 Wiring the Background Music Input
Connect the Background Music source to the BGM INPUT terminals. See Figure 8.
NOTE: The Background Music Input shall be a Line Level Signal 2.5V P-P or 300mVrms at 600 Ohms
signal.
BGM
INPUT
BGM
INPUT
TB2
TIP PHONE
IN
RING
TB1
Background
Music Source
Figure 8
Connecting the Background Music
STEP 7