Specifications

8
1.2 Connections
Figure 3 shows the layout of the SP4-TZC PC Board.
PAGE
VOLUME
JP1
STANDBY / RUN
USB CONFIG
D27
D25
D17
R7
AUDIO
OUT
TB3
RS485
COM1
TB5
POWER
TB6
BGM
INPUT
TB2
TIP
RING
TB1
R17
BGM VOLUME
JP1 SETTINGS
1-2 - ALERT PAGE TONE
2-3 - NO ALERT PAGE TONE
RS485 COM1 ACTIVE
D24
RS485 COM2 ACTIVE
TROUBLE
D29
SPLITTER MISMATCH
D28
RS485 COMM LOSS
D26
Telephone
Input
Background
Music Input
BGM Volume
Adjust
24 VDC
Input
Diagnostic LED
Indicators
(Orange)
USB Port
RS485 COM
Port
Audio
Output
Page Volume
Adjust
Alert Page Tone
Selection Jumper
Power On LED
Indicator (Green)
Communication
LED Indicator
(Green)
POWER
SYSTEM
RESET
System Reset
Button
Microprocessor
PC Board
Alignment Marker
Microprocessor
PC Board
PHONE IN
1
2 3
NOTE:
OBSERVE CORRECT
POLARITY
Status
LED Indicators
(Green)
Figure 3
SP4-TZC PC Board Layout