MX420 Installation and Service Manual
Technical Specifications
16
MOB/ Event input
Insulation:
Maximum ±50 volt, input relative to power
supply lines
Impedance:
3.5 kOhm input relative to Reference GND
Pull-up:
15 kOhm to internal 12 volt
Threshold:
Positive going maximum 2.3 volt, input
relative to Reference GND Negative going
minimum 0.6 volt, input relative to
Reference GND Hysteresis minimum 0.6
volt
Protection:
±25 volt, input relative to shield
±50 volt, input relative to external
power lines
Frequency:
Triggered with 50 mS bounce control
Pulse width:
Minimum 100 mS
Cable B Pins:
Pin 6 (normally open) to Pin 1 (GND)
Alarm output
Signal levels:
When not in Alarm state, or after
acknowledged alarm: Normally Open
When in Alarm On state: Closed to Ref.
GND
Cable A Pins:
Pin 18 (N.O. contact to GND)
Antenna voltage output (Cable A)
DC voltage:
12 VDC, +1.0 VDC loaded; (11.5 VDC
nominal unloaded)
DC current:
Maximum 500 mA at 12.0 volt DC
1 PPS Output (optional)
Output :
1 PPS + 50 ns RMS
Signal levels:
0-12 Volt
Pulse width:
250 mS.
Rise Time:
25 nS.
Summary of Contents for MX420
Page 1: ...Installation Service Manual MX420 Navigation System ...
Page 5: ......
Page 8: ...1 MX 420 Installation and Service Manual List of Components SECTION 1 LIST OF COMPONENTS ...
Page 9: ...MX 420 Installation and Service Manual List of Components 2 ...
Page 15: ...MX 420 Installation and Service Manual List of Components 8 ...
Page 17: ...MX420 Installation and Service Manual Technical Specifications 10 ...
Page 24: ...17 MX420 Installation and Service Manual SECTION 3 MECHANICALAND INSTALLATION DRAWINGS ...
Page 25: ...18 MX420 Installation and Service Manual ...
Page 32: ...25 MX420 Installation and Service Manual SECTION 4 ELECTRICALINSTALLATION DRAWINGS ...
Page 33: ...26 MX420 Installation and Service Manual ...
Page 49: ...42 MX420 Installation and Service Manual ...
Page 57: ...50 MX 420 Installation and Service Manual SECTION 5 INSTALLATION NOTES ...