HP Car 3490A SectionII, 9 9 9 9 f, GPIBBUSCONNECTORJl2, Table2-2.GeneralPurposeInterfaceBusConnectors, Figure2-9.GeneralPurposelnterfaceBusConnections

Model3490A SectionII

Table2-2. GeneralPurposeInterfaceBusConnectors.

	Description	Mates with	-hp-Part No.	Amphenol No.
A .	Cable to chassisplug	Rearpanelor	1251-0293	51-30240
	with hood and clamp	with B or D.
B .	Cable to chassisReceptacle	A o r C	'1251-0431	57-60240
	with hood and clamp
a	Rack and panel plug	Rearpanel	-0389	57-10240
		or	1251
		with B or D.
D .	Rack and panel Receptacle	A o r C	-0388	57-20240
			1251

GPIBBUSCONNECTORJl2

	r o ( o F @					OUTGUARD
	9 9 9 9 f					G R O U N D
	n	^	^	A		*
	J	J	J	J	J
						Mating Connector:
						-hp-Part No. 12514293
						Amphenol No.57-3O24O
						Mating Cables:
						1 0 6 3 1 A	3 f t .
	8 ä ; ; ' i E F q 8 ä +						6 ft.
						10631B
						1 0 6 3 1 C 1 2 f t .
						6
L O G I C L E V E L S						LEOP
H preceding signal name or as first letter of mnemonic
						L End Output is used by controller to terminate all
indicates signal is HIGH true; L indicates LOW true.
						activity on the bus.
Input Signals:						HDAC
						H Data Accepted indicates 34904 has accepted data.
Each input	line is terminated with	3 kO		to	+ 5 V and
6.2 kO to	ground, and one TTL load.					Returns to LOW when 34904 is finished processing
						data.
Output Signals:						H R F D
Each output	can drive 1S GPI B loads. The output is an					H I G H ,
open{ollector driver capable of sinking 4g mA at
O.4 V output.						LDAV
						L Data Valid indicates valid output data is available
S I G N A L S						from the 34904 if addressedto talk, or input data is
						available if 3490A is addressed to listen and MRE is
L M R E						HIGH. Addressis valid if MRE is LOW.
L Multiple	Response Enable allows all units on the					L R E N
GPIB to be addressedor unaddressedby the control-						L Remote Enable enables the 34gOA to be placed in
ler.						the Remote mode.
LSRO						LDIO1 through LDIOS
						L Data Input/Output lines carry information in octal
L Service					wants the
						form to the 34904 if addressedto listen or from the
Request indicates that the 34904
attention of the controller.						3490A if addressedto talk_

'Outguad ground is isolated from inguard circuit common (input Low terminall and chassis (power linel ground and may be floated a maximum of 40 V above chassis.

Figure2-9. GeneralPurposelnterfaceBusConnections.

a 1