Reference
3–2
VX1410 IntelliFrame Instruction Manual
Table 3–1: Passive Monitor Connector Pinouts
Pin
Function
Description
1
+5 VM
+5 V for voltage monitoring
1
2
–12 VM
–12 V for voltage monitoring
1
3
–24 VM
–24 V for voltage monitoring
1
4
–2 VM
–2 V for voltage monitoring
1
5
Rem Stdby
Remote On/Standby Power Switch.
2
6
+5 VC
+5 V output for charging batteries, running external TTL circuitry,
1 A maximum
7
+12 VC
+12 V output for charging batteries, running external TTL circuitry,
1 A maximum
8
+5 VB
Input for +5 V standby voltage (for example, from an external
battery). Maximum of 1 A total (pins 8 and 21 combined)
3
9
Gnd
Logic Ground
10
SYSRESET*
Backplane SYSRESET* signal (input or output). If you use this pin,
do not violate VXIbus electrical specifications (keep the extender
cable as short as possible).
4
11
∆
T
An analog output signal proportional to the maximum temperature
rise of the 13 modules (100 mV/
°
C)
12
Tach1
A square wave output signal proportional to the speed of Fan 1.
RPM = 15 / (+Pulse Width), where (+Pulse Width) is the positive
pulse width of the Tach1 fan output signal.
13
Tach2
A square wave output signal proportional to the speed of Fan 2.
RPM = 15 / (+Pulse Width), where (+Pulse Width) is the positive
pulse width of the Tach2 fan output signal.
14
+12 VM
+12 V for voltage monitoring
1
15
+24 VM
+24 V for voltage monitoring
1
16
–5.2 VM
–5.2 V for voltage monitoring
1
17
Gnd
Logic Ground
18
Gnd
Logic Ground
19
Gnd
Logic Ground
20
Gnd
Logic Ground
21
+5 VB
Input for +5 V standby voltage (for example, from an external
battery). Maximum of 1 A total (pins 8 and 21 combined)
3
22
Gnd
Logic Ground
23
ACFAIL*
Backplane ACFAIL* signal output. If you use this pin, do not violate
the VXIbus electrical specifications (keep the extender cable as
short as possible).
4
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