3-4
CSE-M14TQC MOBILE RACK User's Guide
3-4 Rear Jumper Pin Definitions
Explanation of Jumpers
To modify the operation of the backplane, jump-
ers can be used to choose between optional
settings. Jumpers create shorts between two
pins to change the function of the connector. Pin
1 is identified with a square solder pad on the
printed circuit board.
Note:
On two-pin jumpers, "Closed" means the
jumper is on and "Open" means the jumper is
off the pins.
Connector
Pins
Jumper
Setting
3 2 1
3 2 1
#1 Temp LED Setting Jumper
The Temp LED Setting jumper (J6) is a 3-pin
jumper that can be used to configure the temper
-
ature at which the Overheat LED 802 will light up.
Temp LED Setting (J6)
Jumper Settings
Jumper Setting Definition
Open
45O C
Pins 1-2
50O C (Default)
Pins 2-3
55O C
#10 Fan Control Mode Setting Jumper
The Fan Control Mode Setting Jumper (J7) is
a 3-pin jumper that configures the fan control
mode for the backplane between PWM Mode
and Full Speed.
Fan Control Mode Setting
(J7) Jumper Settings
Jumper Setting Definition
Pins 1-2
PWM Mode
Pins 2-3
Full Speed
#11 IC Reset Jumper
The IC Reset Jumper (J8) is a 3-pin jumper that
configures the IC reset mode for the backplane
between Normal and Reset Mode.
Note:
For Factory Use Only.
IC Reset (J8) Jumper
Settings
Jumper Setting Definition
Pins 1-2
Normal
Pins 2-3
Reset
