Xylem CHATTER Hardware Manual - Manual (Page 10)

USB
TEST
SW
USB
SIM card
ON OFF
Battery
ANT.1
ANT.2 ANT.3
DI 1 DI 2 DI 3 DI 4 AI 1 AI 2 AI 3 AI 4 GND GND
+5/ 10/ 15V
GND 3V6-A GND GND A B GND 3V6-B GND
RS485
1 2
3
4 5
3.6 VDC battery
MJK order no. 550246
Figure 2. Terminal Blocks for Signal Inputs, Voltage Outputs and Serial Communication
Digital Inputs ( 1 )
Chatter has four digital inputs each with four functions during normal operation:
NC (passive) The input is normally connected to GND and will be
activated, when the connection is broken.
NO (passive) The input is normally open and will be activated, when it
is connected to GND.
NC (active) The input is normally connected to a voltage between 2 - 5V
and will be activated, when the connection is broken.
NO (active) The input is normally open and will be activated, when it is
connected to a voltage betweeen 2 - 5V.
Digital Inputs
Terminal Designation/function
DI 1 NC/NO, active/passive
DI 2 NC/NO, active/passive
DI 3 NC/NO, active/passive
DI 4 NC/NO, active/passive
GND Common GND terminal for DI 1 - 4
Table 4. Digital Inputs
Data Logger
10 GB Chatter Hardware Manual 100416