907-SER Expansion Card

8-CHANNEL SERIAL DATA EXPANSION CARD

The 907-SER card is an 8-Channel RS-232/485 serial data expansion card intended for stacking on top of a 907 motherboard to add channel capacity. By default, this card is switch configured to multiplex eight data channels onto a single backplane data port (8:1) connected to a 907 motherboard. This default configuration has a maximum baud rate of 250 kbaud on each of the eight serial channels. Options include support for RS-422 configurations and higher data rates.

Power is typically drawn from the 907 motherboard via the PC/104 connector.

A 907-DIAG-E diagnostic card may be added to the same stack as the console 907 motherboard to obtain system diagnostics of both the remote and console stacks through an Ethernet interface and Graphical User Interface (GUI) software.

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Overview

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Features

Electrically isolated serial data channels (in pairs)
Switch selectable RS-232/485 interfaces for individual channels
RS-422 and RS-485 inputs have fail-safe biasing
Compatible with 907-DIAG-E diagnostic card and Graphical User Interface (GUI) software
On-board diagnostic LEDs
Compatible with 907-232 and 907-485 serial cards

Benefits

Isolated data channels provide more robust interface to external equipment
Simplifies troubleshooting with advanced diagnostics
Reduces sparing requirements

Typical Applications

Remotely Operated Vehicles (ROVs)
Pipe inspection robots
Bomb disposal robots
Tether management systems
Tactical networks

Specifications

907-SER Specifications
No. Channels	8 channels of RS-232 (default), RS-485 or RS-422*
Data Rate	RS-232: 120 kbaud RS-485/422: 250 kbaud (2.5 Mbaud option)
Dimensions	PC/104 (form-factor only)
Weight	< 120 g (0.26 lb)
Power Voltage	+5.0 VDC ±10%, regulated
Power Current	0.75 A typical (1.5 A max)
Data I/O	4 x 8-pin Molex (Micro-Fit Series)
Power	Via PC/104 connector Optional: 2-pin Molex (KK Series)
Temperature	-10°C to +60°C (operational) -40°C to +85°C (storage)
Humidity	85% RH, non-condensing
Vibration	5 g, 25 – 1000 Hz, 3-axis
Shock	30 g, 11 ms, half-sine, 3 axes
*Factory configured option