Fujitsu IP-900E Hardware User's Manual page 70

Chapter 4 Cable specifications
(3) Analog AUDIO cable
Connector
1
Front view
Pin assignment
Maximum length
Order
IP-900E/IP-900D/IP-900IID
RCA Pin
2
IP-900E/D
<IP-920E/D>
SIGNAL
SG
20m (for 3C-2V equivalent characteristics or better )
Procured separately
<Reference for procurement> Cable w/RCA pin connector at both ends
①
②
56
RCA Pin
<External device>
① SIGNAL
② SG