Princeton Instruments NIRvana-LN, User Manual, Page: 98 / 122

98 NIRvana
™
-LN System Manual Issue 4
6 GND System digital ground. Any external circuitry intended to interface with the trigger control
signals must reference this ground connection.
7 READOUT MON Active high. A high level on this output indicates that data is being read out of the array.
8 EXPOSE MON Active high. A high level on this output indicates that the detector is exposing (integrating).
9 TTL I/O LATCH
ENABLE
Logic 1, TTL I/O inputs are monitors.
Logic 0, TTL I/O inputs are latched on the negative transition.
10 TTL I/O Data Bit 0 TTL level programmable input or output. 16-bit register, with 8 LSB for data and 8 MSB
controlling I/O direction
Logic 1: corresponding data bit is an output.
Logic 0 the bit is an input).
11 TTL I/O Data Bit 1 TTL level programmable input or output. 16-bit register, with 8 LSB for data and 8 MSB
controlling I/O direction
Logic 1: corresponding data bit is an output.
Logic 0 the bit is an input).
12 TTL I/O Data Bit 2 TTL level programmable input or output. 16-bit register, with 8 LSB for data and 8 MSB
controlling I/O direction
Logic 1: corresponding data bit is an output.
Logic 0 the bit is an input).
13 TTL I/O Data Bit 3 TTL level programmable input or output. 16-bit register, with 8 LSB for data and 8 MSB
controlling I/O direction
Logic 1: corresponding data bit is an output.
Logic 0 the bit is an input).
14 TTL I/O Data Bit 4 TTL level programmable input or output. 16-bit register, with 8 LSB for data and 8 MSB
controlling I/O direction
Logic 1: corresponding data bit is an output.
Logic 0 the bit is an input).
15 TTL I/O Data Bit 5 TTL level programmable input or output. 16-bit register, with 8 LSB for data and 8 MSB
controlling I/O direction
Logic 1: corresponding data bit is an output.
Logic 0 the bit is an input).
16 TTL I/O Data Bit 6 TTL level programmable input or output. 16-bit register, with 8 LSB for data and 8 MSB
controlling I/O direction
Logic 1: corresponding data bit is an output.
Logic 0 the bit is an input).
17 TTL I/O Data Bit 7 TTL level programmable input or output. 16-bit register, with 8 LSB for data and 8 MSB
controlling I/O direction
Logic 1: corresponding data bit is an output.
Logic 0 the bit is an input).
18 GND System digital ground. Any external circuitry intended to interface with the trigger control
signals must reference this ground connection.
19 Power Status A high level on this output indicates that the detector power is switched on (+3.3 V = on, 0 V
= off).
20 GND System chassis ground. Any external circuitry intended to interface with the trigger control
signals must reference this ground connection.
21 Reserved Reserved for Future Use: DO NOT USE
Table A-4: AUX I/O Connector Pinout and Signal Descriptions (Sheet 2 of 3)
Pin # Signal Name Signal Description