VXI VX1410A, VX1420A manual 58

Reference

Table 3±1: Passive monitor connector pinouts

Pin	Function	Description
1	+5 VM	+5 V for voltage monitoring1
2	±12 VM	±12 V for voltage monitoring1
3	±24 VM	±24 V for voltage monitoring1
4	±2 VM	±2 V for voltage monitoring1
5	Rem On/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) 0V=0°C
12	Tach1	VX1410A: 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.
		VX1420A: RPM = 10 / (+Pulse Width)
13	Tach2	VX1410A: 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 monitoring1
15	+24 VM	+24 V for voltage monitoring1
16	±5.2 VM	±5.2 V for voltage monitoring1
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

3±2 VX1410A & VX1420A IntelliFrame Mainframe Instruction Manual