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903-0623-00 Rev. A
5.6.1 Plug-In Modules
A variety of plug in modules is available for use with the AIB-4 cards. When installing the modules, ensure
the connector marked by the white dot on the module PCB is mated with the corresponding header
marked with a white dot on the AIB motherboard. When removing the modules, carefully extract the
plug-in board by pulling both connectors straight out to minimize flexing of the PCB. Uninstalled AIB
modules should be handled like integrated circuits: observe ESD handling precautions and store in static
dissipating bags or conductive foam.
The following table shows a summary of the AIB plug-in modules available.
Card ID
AIB-232
AIB-TRIGGER
AIB-485
AIB-ARCNET
AIB-HYDRO
AIB-MS900
AIB-CANBUS
5.6.2 RS-232 Plug-In (AIB-232/TRIGGER)
Card P/N 903-0251-00 (AIB-232)
Card P/N 903-0251-01 (AIB-TRIGGER)
The AIB-232 plug-in module, which supports RS-232, is shown below in Figure 5.6-4. No jumper or switch
settings are required since the board is used solely for RS-232 data to a maximum of 120 kbaud. In
addition to the ultra-fast fuses on the AIB-4 motherboard, protection for RS-232 inputs and outputs
includes transient voltage suppressors and opto-isolation.
Connector pin designations for the front panel WAGO connector are given in the table below. ISOGND is
the common isolated signal ground for both receive and transmit data. Front panel LEDs can be used to
identify the presence and direction of serial data.
*The chassis pin is normally left open on the mating connector.
Note: The AIB-TRIGGER plug-in module is identical to the AIB-232 plug-in module except that the
transmit pin 3 is not RS-232 compatible; instead this pin is a 0V to +5V TTL output.
Focal Technologies Corp.
Table 5.6-1: AIB Plug-in Modules
Card Description
RS-232 Plug-In
Responder Trigger Plug-In
RS-485/422/TTL Plug-In
Tritech Sonar ARCNET Plug-In
Hydrophone/Analog Plug-In
MS-900 Analog Sonar Plug-In
CANBUS Plug-In
Figure 5.6-4: AIB RS-232/TRIGGER Plug-In Module
Table 5.6-2: AIB-232/TRIGGER Pin Designations
Pin
1
2
3
4
Chassis* (optional)
Model 903 User's Guide, FMB-X-2.5 Version
903-0251-00
903-0251-01
903-0252-00
903-0261-00
903-0244-00
903-0250-00
903-0297-00
Designation
ISOGND
Receive (RXD)
Transmit (TXD)
Card P/N
Page 5-25
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