CM312 Datasheet, PDF (32/56 Pages) List of Unclassifed Manufacturers – Communications utilityModule

10Base-2 connector, CN14
Connector CN14 is a BNC bayonet connector for coaxial cable normally used with 10Base-2
Ethernet.
The pinout of CN14 is:
Pin
Signal
Function
in/out
1
SIGNAL Signal to 50 ohm cable in/out
2
GND
Signal Ground
--
2
1
Figure 5 BNC Connector CN14
Power Protection Circuitry
To reduce the risk of damage due to power-supply problems, the utilityModule includes several
protective components.
Module Power-Supply Protection
The utilityModule includes a component to help prevent damage due to problems with the +5Vdc
power supply from the PC/104 bus. Protection is provided for:
• Over-current
• Reversed polarity
• Excessive voltage
This protection is only for the utilityModule, and will not protect other devices in a PC/104 stack.
The protective fuse is replaceable and is available from electronics suppliers. Its description and
part number is:
Littelfuse Nano² SMF 1.0 amp, R451-001
Caution: Replace fuses only with parts of identical current and voltage rating.
CM312 Quad Serial utilityModule
22
RTD Embedded Technologies, Inc.