CHAPTER 7
Connectors, Controls and Indicators
89
7.2 RS–232 (Serial Interface)
This 9-pin D-sub connector is present on all controller modules. It is used for setting the IP
address and for testing front-end hardware. It also allows communication with an optional
Remote Control Unit ZH-0632 for controlling sound intensity measurements.
Fig.7.2
RS–232 connector
7.3 BNT Connector
Fig.7.3
BNT connector
a
7.4 BNC/TNC Input Connector
Fig.7.4
BNC/TNC input
connector
a
a. Note: Type 3109 does not have the internal switch for floating/grounded. Instead it is floating with 100 Ω
to chassis
980320/3
Signal Input
(DeltaTron 4mA, 28 V)
+ 6 V for Tacho Probe
Max. 60 mA
Signal GND
Floating/Grounded
Internal Switch
(controlled by software)
980321/3
Signal Input
(DeltaTron 4mA, 28 V
on BNC only)
Signal GND
Floating/Grounded
Internal Switch
(controlled by software)