WP1000AF

Tektronix WP1000AF
Signal processing system Produced from (?) to (?) Manuals Tektronix 7B71 Mod 515C supplement Tektronix 7A16A Mod 515D Manual (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix WP1000AF Signal Processing System is a bundle of a DPO, two 7A16A vertical and two 7B71 horizontal plugins. All components have additional modifications (Mod 515C or -D), which allows an external computer to control some of the front panel settings. The National Stock Number (NSN) for this bundle is 6625-01-034-4833.

Parts of the WP1000AF bundle

Count	NSN Number	Tek Name/Parts	Description
1	7021-01-038-5028	P7001 + D7704 + A7704 Mod 515C
2	6625-01-037-0091	7A16A Mod 515D
2		7B71 Mod 515C
1			Documentation
	5305-01-076-3151	213-0054-00	Screw, 6-32, 5/16, Pan-Head

Mainframe

The 7704A Mod 515C adds the ability to remotely operate the vertical, horizontal and triggering modes of the mainframe. Additional connectors on the rear are directly connected to the plugin-compartments to allow remote operations for the plugins.

Pinout of the remote connector for the Mainframe

Pin	Function	Data Type	Range	Description
Coax #1	n.C.
Coax #2	n.C.
Coax #3	n.C.
5 Single Pins	Device Code	See Table below
Coax #4	Remote Control	8-Bit serial	TTL-Compatible	Bit 8+7+6: Vert mode Bit 6+5: B Trigger Bit 4+3: A trigger Bit 2+1: Horz mode Info: Bit 6 is shared

Front view of the system. The Mainframe and the plugins have remote/local switches
Tag indicating the modification
Remote/local switch on the lower section of the DPO
Rear view of the system
Tag added by Honeywell - indicates the later usage of this specific mainframe
The additional connectors for remote control
The additional connectors for remote control (rear view)
Replacements for the remote control connectors are still available in 2024
The switch to turn off the control illumination was removed.The MOD515C needs a permanent 5V supply.
Additional connector board on the power supply
Most boards of the MOd 515C modification
Overview on the additional boards in the lower section of the mainframe
The modified mode switches.
MOd 515C horizontal mode switch assembly. The lights work independently from the switches.
Mod 515C horizontal mode switch assembly. The lights work independently from the switches.
Mod 515C vertical mode switch assembly. The lights work independently from the switches.
Mod 515C vertical mode switch assembly. The lights work independently from the switches.
The main logic board of the Mod 515C
The main logic board of the Mod 515C
The main logic board of the Mod 515C
The serial receiver board
The serial receiver board
The serial receiver board
The Mod 515C calibrator board
Additional coax connectors of the plugin interfaces
Additional coax connectors of the plugin interfaces

P7001

The only modification to the P7001 was done on the z-axis/front panel pcb. A switch allowed to change to a longer timeout period for the external computer.

Z-Axis/Frontpanel pcb with additional switch and timing resistor
Z-Axis/Frontpanel pcb with additional switch and timing resistor

7A16A Mod 515D Plugin

The 7A16A Mod 515D adds the ability to remotely operate the Bandwith, Polarity and Position functions of the plugin.

Pinout of the remote connectors for the vertical plugins

Pin	Function	Input Type	Range	Description
Coax #1	Polarity	Digital	0 or 5V, TTL compatible	+5V => +Up 0V => invert open => +Up
Coax #2	Bandwith	Digital	0 or 5V, TTL compatible	+5V => Full 0V => 20MHz open => Full
Coax #3	Position	Analog	0...5V	+5V => max upward 0V => max downward open => center
5 Single Pins	Device Code	See Table below
Coax #4	n.C.

Front view of a 7A16A plugin with Mod 515D
Left side
Right side
Top side
Closeup of serial number and Mod 515D sticker

7B71 Mod 515C Plugin

The 7B71 Mod 515C adds the ability to remotely operate the triggering level, the position & delay time, the magnifier setting and the trigger-modes. The modifed 7B71 timebase can be configured as a delaying or as a delayed timebase.

Pinout of the remote connectors for the horizontal plugins

Pin	Function	Input Type	Range	Description
Coax #1	Trigger Level	Analog	0...5V	+5V => max 0V => min open => center
Coax #2	Delay Time Mult.	Analog	0...5V	+5V => max 0V => min open => center
Coax #3	Position	Analog	0...5V	+5V => max 0V => min open => center
5 Single Pins	Device Code	See Table below
Coax #4	Trigger & Mag.	8-Bit serial	TTL-Compatible	Bit 8: Mag Bit 7: Trig Slope Bit 6+5: Trig Coupl. Bit 4+3: Trig Mode Bit 2+1: Trig Source

Front view of a 7B71 plugin with Mod 515C
Left side
Right side
Top side
Closeup of serial number and Mod 515C sticker

Device Code Matrix on the 5 rear Remote Connectors

The single contacts of each connector are grounded in different patterns to provide electrical identification to the computer.

Connector	Single Pin #1	Single Pin #2	Single Pin #3	Single Pin #4	Single Pin #5
Left vertical plugin	Open (n.C.)	GND	GND	GND	GND
Right vertical plugin	GND	Open (n.C.)	GND	GND	GND
Mainframe	GND	GND	Open (n.C.)	GND	GND
A horizontal plugin	GND	GND	GND	Open (n.C.)	GND
B horizontal plugin	GND	GND	GND	GND	Open (n.C.)

Field of Application

Some parts of the modification indicate that the WP1000AF system was developed either specifically for or in close consultation with Honeywell. Honeywell did some additional, but minor modifications to the system. The feet were modified so that the device could be fixed in place. They also added a cable tie holder and a tag to the back of the unit. The result got the Honeywell part-number 10066273-101 and the NSN number 6625-01-060-4390. The pictures on this page show such a device. Honeywell most likely used one of their own type of computer systems to control the DPO.

The contractors name and the contract number (see picture below) indicate that this specific insturment was involved in the development of the F15 aircraft project. And this external page: Michael J. Gooding, H. W. Sweatt Award reveals that a WP1000AF system was used in the TITE test environment for the F15 Tactical Electronic Warfare System (TEWS).

Parts of the Honeywell 10066273-101 bundle

NSN Number	Component part number	Description	Manufacturer
5365-01-053-8742	10057922-101	Spacer, plate	Honeywell
5365-01-052-9612	10057922-102	Spacer, plate	Honeywell
6625-01-034-4833	WP1000AF	Oscilloscope	Tektronix
	TY24M	Cable tie	Thomas & Betts
	TC5342A	Cable tie holder	Thomas & Betts
	MS24693C50	Screw	Military Standards
	33A1-13-484-1	Documentation	Ordnance Corps
	10063681-222		Honeywell
5310-01-082-3879	10057921-102	Nut	Honeywell