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1582-11, -12 Data Switches

  

The 1582-11 Data Switch provides Auto, Manual, or Remote relay switching between CH1 and CH2 clock signals (RS232C or RS422) on pins 3 and 8 with pin 5 ground. Alarm conditions are either if clock is lost for a preset 0.1 to 0.9 seconds on CH1, CH2 or with external alarm contact closures. The 1582-12 has two switches in one chassis. Switching logic can be jumper selected as follows:

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

If power is lost or first applied (as alarms at power up dictate), CH1 is selected. The Manual Select switch and (when in AUTO) contact closures to Remote Select pins, select CH1 or CH2 independent of alarms. LEDs and closures indicate alarms and switch selection of CH1 or CH2 and REMOTE or MANUAL operation. Redundant power supplies.

 

1582-12 Data Switch

Equipment Specifications*
 

Data Characteristics  
Input/Output
Data Rate
Connector
RS422 or RS232C
512 kB/s max
DB9, female
Switch Characteristics  
Type
Isolation
Switch time
Contact Resistance
Configuration
Pins switched
Pins connected (A versions only)
Pins not connected (A versions only)
Switch after alarm
Relay
>40dB
<=10 ms
<=10 ohms, <1 ohm typ
DPDT for clock lines
3, 8
1, 2, 4, 5(GND), 6, 7, 9
1, 2, 4, 6, 7, 9
 
Settable for 0 to 0.9 sec in 0.1 sec increments
Controls/Indicators
Manual Select
LEDS
Closures In
Closures Out		 Switches between manual or auto operation
CH1, CH2 on-line; MANUAL; ALARM CH1, CH2; REMOTE; PWR CH1, CH2
ALARM 1, 2; REMOTE 1, 2; REMOTE RESET
Clock Alarm 1, 2, 1 OR 2; Remote; Manual; CH1, CH2 Selected
Other  
Mechanical
Power		 19" standard chassis; 1.75"H X 11.5"D
90-260 VAC, 47-63Hz, 20W; Redundant power supplies

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