APOLLO user manual
Issue G
38
J7B and J7C – COM1 and COM2 RS232 serial ports
DB9 male
PC99 Colour: Aqua
Pin
Signal name
Pin
Signal name
1 Data
Carrier
Detect
(DCD)
2
Receive Data (RX)
3
Transmit Data (TX)
4
Data Terminal Ready
(DTR)
5
Ground
6
Data Set ready (DSR)
7 Request
To
Send
(RTS)
8
Clear To Send (CTS)
9
Ring Indicator (RI)
J8 – S/PDIF digital output
3-way 2mm pitch shrouded header.
Mating connector: JST PHR-3
Mating connector crimps: JST SPH-004T-P0.5S
Pin
Signal name
1 +5V
2
S/PDIF output to
optical transmitter
3 GND
J9 – CD audio input
4-way 2mm pitch shrouded header.
Mating connector: JST PHR-4
Mating connector crimps: JST SPH-004T-P0.5S
Pin
Signal name
1 Left
channel
2 Ground
3 Right
channel
4 Ground
9
6
5
1
1
4
1
3
