Port Connector Functions - Teledyne 2105 Installation And Operation Manual

Table 2-4 2105 Port Connector Functions
Pin
A - SDI-12A
B - XMT-IO1B
C - RCV-IO2C
D - V5D-IO3D
E - A2D-IO4E
F - A2D-IO5F
G - CTR-IO6G
H - CTR-IO7H
J - DGND-J
K - VBAT-K
L - PGND-L
M - PSRC-M
a. All voltage levels are positive default and referenced to common ground on pins J and L.
b. All pulse signals are considered 50% duty cycle.
c. See user manual for additional information on alternate configurations.
Wire
Functionality
Color
Brown SDI-12 Data
Red I/O + Serial Out TTL Serial Transmit Transmits 0 to 5 VDC,
Orange I/O + Serial In
Yellow I/O + Pulser
Green I/O, Analog
c
Voltage
Blue I/O, Analog
Voltage
Violet I/O, Analog
Voltage
Gray I/O + Counter
Black Digital Ground
Tan Battery Voltage Battery Voltage
White Power Ground
Pink Power Source
2105 Interface Module
Section 2 Installation and Operation
a
Default
Additional Information
Configuration
SDI-12 Data Master Transmits/Receives 0 to 5
VDC, 1200bps
default 9600bps
TTL Serial Receive Receives ± 4 to 26 VDC,
default 9600bps
b
Flow Pulse Output Transmits 65-75 ms, 5 VDC
pulses
Sampler Inhibit Out- Transmits sustained, 0
put VDC for Inhibit
Sampler Event Mark Receives 3 second, 4 to 26
Input VDC pulses
Rain Gauge Tip Receives 48 ms, 0 VDC
Input Rain pulses
Sampler Bottle Receives 48 ms, 4 to 26
Number Input VDC pulses
Digital Ground 0 VDC, 100 mA typical
7-26 VDC, 1A maximum
Power Ground 0 VDC, 3A maximum
Power Source 9-12 VDC, 0.5A maximum
(switched)
2-39