Hach ORBISPHERE 3650 Atex User Manual page 22

Installation
The interface box operates from 115 VAC or 230 VAC power. Make sure that the power is
correct before connecting to a power supply. A green power LED is illuminated when the box is
plugged into the power source.
Two cables are supplied with the model 29122 interface box:
• A model 32511 cable for connection between the 3650EX instrument LEMO-6 connector and
the interface box
• A model 32538 cable for connection between the interface box and the PC.
The connections should be made as indicated in
Note: When the Interface Box is connected to the 3650Ex instrument, this also acts as a power supply to
the instrument and disconnects the internal battery power source.
Pin
Pin 1 Not Used
Pin 2 TTL Transmitted Data (TXD)
Pin 3 TTL Received Data (RXD)
Pin 4 Not Used
Pin 5 Power Supply (V+)
Pin 6 Not Used
Pin 7 Not Used
Pin 8 Not Used
Pin 9 Ground
Note: If you use an adapter for the connection to the PC, make sure it is designed for this purpose and,
thus, has all nine pins accessible. Some 25-to-9 pin adapters are supplied for specific use, such as a
mouse, and these may have only certain pins available.
20
Pseudo RS232 Signal
Transmitted data (TTL-TXD)
Received data (TTL-RXD)
Not used
Not used
External voltage input (used with the model 29122 interface,
only in safe area)
Ground
Use Pin
Pin 1 Not Used
Pin 2 RS-232 Transmitted Data (TXD)
Pin 3 RS-232 Received Data (RXD)
Pin 4 Not Used
Pin 5 Ground
Pin 6 Not Used
Pin 7 Not Used
Pin 8 Not Used
Pin 9 Not Used
Figure 3.
Use
LEMO-6
Pin
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6