Agilent Technologies Infinity II 1290 User Manual page 183

• standard TTL levels (0 V is logic true, + 5.0 V is false),
• fan- out is 10,
• input load is 2.2 kOhm against + 5.0 V, and
• output are open collector type, inputs/outputs (wired- or technique).
All common TTL circuits operate with a 5 V power supply. A TTL signal is defined as "low"
N O T E
or L when between 0 V and 0.8 V and "high" or H when between 2.0 V and 5.0 V (with
respect to the ground terminal).
Table 6
Pin
1
2
3
4
5
6
7
8
9
Special Interfaces
The module includes a DC- Out (24 VDC) power line that is intended to be
used with certain modules that operate as CAN slaves, for example
external valves. The line has a limited output of 1.7 A and is self
resetting.
Agilent 1290 Infinity II Flexible Pump User Manual
Remote Signal Distribution
Signal Description
DGND Digital ground
PREPARE (L) Request to prepare for analysis (for example, calibration, detector
lamp on). Receiver is any module performing pre-analysis activities.
START (L) Request to start run / timetable. Receiver is any module
performing run-time controlled activities.
SHUT DOWN (L) System has serious problem (for example, leak: stops pump).
Receiver is any module capable to reduce safety risk.
Not used
POWER ON (H) All modules connected to system are switched on. Receiver is
any module relying on operation of others.
READY (H) System is ready for next analysis. Receiver is any sequence
controller.
STOP (L) Request to reach system ready state as soon as possible (for
example, stop run, abort or finish and stop injection). Receiver is any
module performing run-time controlled activities.
START REQUEST (L) Request to start injection cycle (for example, by start key on any
module). Receiver is the autosampler.
Hardware Information
Interfaces
10
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