HP 70611A Attenuator/Switch Driver

The HP 70611A is a 1-slot MMS module capable of controlling 31 electromechanical switches or attenuator switch sections. Option 001 adds an output driver card (HP 84940A) that is capable of generating up to 31 individual 200 mA, 24 Vdc current pulses. Used with the appropriate HP 8760 series switches or HP 8490 series attenuators, the HP 70611A can sense switch states and relay this information back to the bus. The attenuator/switch driver can remotely control an additional 217 electromechanical switches or attenuator switch setting for a total of 248. This total drive capacity is realized through the use of additional output driver cards installed in either a custom rack-mounted unit or a custom MMS interface module.

[ Features ]

Capable of driving 248 devices
1-slot wide MMS module

[ Specifications ]

Module Size:	1 slot


Switching Speed:	

	Individual switch lines can be adjusted from 5 to 1275 ms.  
	Overall switching speed is dependent on selected switch 
	pulse widths


Sensing: 

	Can be enabled or disabled.  Sensing delay is programmable 
	from 5 to 1275 ms.  Sense delay and programmed switch pulse 
	width control the overall switching speeds of the HP 70611A.
	For N switches, if N/4 is an integer, total switching speed 
	is N/4 x (P + D), where P = selected pulse width and 
	D = sensing delay.  If N is not an integer, total switching 
	speed is (INT (N/4) +1) x (P + D).


Weight:	25 kg (5.5 lb) maximum


Operating Temperature:	0 to 55°C


Drive Capacity:

	31 devices for HP 70611A, Option 001.  Switches 
	or attenuators can be connected to the HP 70611A, Option 001, 
	via a 68 pin SCSI  connector.  248 devices for the standard 
	HP 70611A when mated with 8 HP 84940A driver cards via a 36 pin
	daisy-chained SCSI connector.


RFI: 
	Meets or exceeds all the pertinent requirements of 
	MIL-STD-461B, VDE B (0871), FTZ 526, 527/1979 and FCC Part 15 
	Subpart J, Class B.

[ Ordering ]

HP 70611A 	Attenuator/Switch Driver
   Opt 001 	Includes Output Driver Card, HP 84940A
	  	(Capable of being wired to 31 switches or attenuator
	   	switch sections)
   Opt 910 	Extra Operating/Service Manual

HP 84940A 	Output Driver Card
	  	(Designed to be incorporated into MMS or System II
	  	interface modules controlled by an HP 70611A)

HP 70611A, HP 87130A and HP 11713A Switch Attenuator Driver, Configuration Guide

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[ Assistance ]

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[ Related ]

Related product families available online:

MMS System Integration

Switch Interfaces