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1582-71, -72 RF Switches

  

The 1582-71 RF Switch provides Auto, Manual, or Remote relay switching between CH1 and CH2 RF signals. Alarm conditions are either contact closure to ground or an open (selectable). Switching logic can be selected as follows:

1) CH1 Prime Mode - Switches from CH1 to the CH2 only if CH1 alarms and CH2 is good. Switches back to CH1 when it is no longer in alarm or when both CH1 and CH2 are in alarm.
2) Latch to CH2 Mode - Switches from CH1 to CH2 if CH1 alarms and CH2 is good. Latches to CH2. Push Reset or ground Remote Reset pin to return to CH1 if it has no alarm or both CH1 and CH2 are in alarm.
3) Minimum Auto switching, Initial Channel Select (ICS) Mode - Switch stays on channel last selected by Manual or Remote selection after return to Auto if both channel alarms are clear or both channels are in alarm. Auto switching occurs only if current channel alarms and the other channel is clear.

When power is applied with no alarms, CH1 is selected. On power loss CH1 is the selected. The Manual Select switch and contact closures to Remote Select pins (when in Auto), select CH1 or CH2 independent of alarms. LEDs indicate alarm and switch conditions for CH1 and CH2, REMOTE or MANUAL operation, and power on. RF connectors are BNC, female. Contact closure I/O’s are via barrier strip. Dual power supplies provide redundant power. The 1582-72 RF Switch has two independent switches (A and B) in one 1 3/4” chassis.
 


 1582-71, -72 RF Switch Front Panel

Equipment Specifications*
 

Switch Characteristics
Impedance
Type
Isolation
Switch time
Insertion Loss
Configuration		 75 ohms (no sw termination)
RF relay
>65dB DC to 10 MHz, >50dB to 500 MHz, >40dB to 1.5 GHz
<= 10ms
<= 1dB, <0.5dB typ (to 500 MHz); <= 2dB, <1dB typ (to 1.5 GHz)
DPDT
Controls/Indicators  
Manual Select
LEDs		 Switches between manual or automatic operation
CH1, CH2 ON; ALARM CH1, CH2; POWER CH1, CH2; MANUAL; REMOTE
Other
Connector, ALARM
Connector, RF
Mechanical
Power		 Barrier Strip
BNC, female
19" standard chassis; 1.75"H X 11.5"D
90-260 VAC, 47-60Hz, 30W; Redundant power supplies

*+10 to +40 degrees C; 2000m max elevation; 80% humidity; Specifications subject to change without notice