User manual

10 User Manual
1 Introduction
Instrument Control Ports
There are two RS-232 ports (one for each channel) that may be used to
interface with RS-232 compatible lab instruments such as certain
autosamplers, balances, GCs, etc.
Line protocols and operating modes for RS-232 communication are configured
via commands from the host computer.
Host Computer Communication
The 35900 has an MIO slot for host communications. There are presently two
MIO cards that can be used with the 35900. Option 010 is used for LAN
(TCP/IP) communications. Option 011 (or accessory G1847A) is used for
RS-232 and GPIB communication.
Front Panel
The front panel of the 35900 has two buttons and three indicator lights for
each channel. There are also four indicator lights at the bottom of the panel to
convey general information about the state of the 35900 interface.
Start/Stop push buttons
Each channel has START and STOP push buttons that may be used to manually
start and stop analytical runs. These push buttons can be individually enabled
or disabled by the host computer software controlling the 35900.
Run status indicators
Each channel has three indicator LEDs (light emitting diodes).
READY—Indicates there is no current activity on the channel and it is ready to
begin a chromatographic run.
RUN—This light indicates a run is in progress on that channel.