Operation Manual
SYSTEM
OCR-504 Multispectral Radiometer
SECTION
A - OVERVIEW
The standard OCR-504 irradiance and radiance configurations are shown in
Figure 1 (dimensions are in inches). In-air and in-water weights are
approximate. The housing is constructed from Acetron® GP and has a depth
rating of 200 m.
This configuration uses a Subconn MCBH8M connector. Figure 2 illustrates
the connector pin configuration.
1
8
7
6
5
4
3
2
Figure 2 - Subconn
MCBH8M Male Face View
These pins are designated as follows:
Pin
Identification
Description
1
V+
DC Power Supply (6 to 22 Volts)
2
V-/SG
Power Supply Return / Signal Ground
3
TA
RS-422 Telemetry Interface (Transmit A). Balanced
differential serial data from instrument to computer.
4
TB
RS-422 Telemetry Interface (Transmit B). Balanced
differential serial data from instrument to computer.
5
Tx
RS-232 Telemetry Interface. Serial data from
instrument to computer.
6
Rx
RS-232 Telemetry Interface. Serial data from
computer to instrument.
7
NA
RS-
485 SatNet™ Network Interface (A)
8
NB
RS-
485 SatNet™ Network Interface (B)
Note: Some OCR-504 instruments have been retrofitted with a six-pin
configuration for use in older systems. In these cases, the TA and TB
signals are replaced with NA and NB.
