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TM500 Series plug-in interface (view source)

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'''Tektronix [[TM500 and TM5000 mainframes|TM500 mainframes]]''' provide power supplies and signal connections for [[TM500 and TM5000 plug-ins|TM500 plug-ins]].
'''Tektronix [[TM500 and TM5000 mainframes|TM500 mainframes]]''' provide power supplies and signal connections for [[TM500 and TM5000 plug-ins|TM500 plug-ins]].


Mechanically, the interface is a direct card-edge connector with 28 contacts on either side (numbered from 1 at the bottom to 28 on the top) at 5/32" (~3.96 mm) spacing.  The connector can be keyed in several places, the plug-in boards have matching cuts between contacts (see below).  
Mechanically, the interface is a direct card-edge connector with 28 contacts on either side, at 5/32" (~0.156" or 3.96 mm) spacing.  The connector can be keyed in several places, the plug-in boards have matching cuts between contacts (see below).
Looking into the mainframe from the front panel, "A" pins are left of the connector centerline (on the plug-in PCB's component side) and "B" are on the right (on the plug-in PCB's solder side). Pins are numbered from 1 at the bottom to 28 on the top.  


There are two dedicated, floating 25 V<sub>AC</sub> transformer windings per slot, as well as several AC and DC buses shared by all slots.<br />
The mainframe provides supplies shared by all slots: 17.5 V<sub>AC</sub>, +11.5 V (regulated from the 17.5 V<sub>AC</sub> supply), +33.5 V, and −33.5 V. 
For each slot, two uncommitted transistors (one NPN and one PNP) are mounted in the mainframe. These are available for the module's power regulation circuits.
In addition, there are two dedicated, 25 V<sub>AC</sub>, 0.5 A transformer windings per slot, floating up to 350 V<sub>peak</sub> with reference to the common ground.
 
In mainframes that have a "[[TM500 high-power compartments|high-power compartment]]", that slot has a separate 17.5 V<sub>AC</sub> and 11.5 V<sub>DC</sub> section (floating v-v the other supplies) providing 4 A shared between them, and that slot's 25 V windings are rated 1 A each.
 
For each slot, two uncommitted transistors (one NPN and one PNP) are heatsink-mounted in the mainframe. These are available for the module's power regulation circuits and are rated to dissipate 7.5 W each.


The signal pin connections depend on the individual modules.  For details, please see the [[Media:070-2088-00.pdf|TM 500 Rear Interface Data Book]].
The signal pin connections depend on the individual modules.  For details, please see the [[Media:070-2088-00.pdf|TM 500 Rear Interface Data Book]].
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|-
|-
!width="10%"|&nbsp;
!width="10%"|&nbsp;
!width="45%"| A side
!width="45%"| B side
!width="45%"| B side
!width="45%"| A side
|-
|-
! Pin  
! Pin  
Line 20: Line 26:
| 28..14 || Signals || Signals
| 28..14 || Signals || Signals
|- bgcolor="LightBlue"  
|- bgcolor="LightBlue"  
| 13 || 25 V<sub>AC</sub> winding #1 || 25 V<sub>AC</sub> winding #1
! 13
| 25 V<sub>AC</sub> winding #1 || 25 V<sub>AC</sub> winding #1
|- bgcolor="Pink"  
|- bgcolor="Pink"  
| 12 || +33.5 V filtered DC || +33.5 V filtered DC
! 12
| +33.5 V filtered DC || +33.5 V filtered DC
|- bgcolor="LightGreen"  
|- bgcolor="LightGreen"  
| 11 || Collector lead of PNP series pass || Base lead of PNP series pass
! 11
| Base lead of PNP series pass || Collector lead of PNP series pass
|-
|-
| 10 || Transformer shield lead || bgcolor="LightGreen" | Emitter lead of PNP series pass
! 10
| bgcolor="LightGreen" | Emitter lead of PNP series pass || Transformer shield lead
|- bgcolor="Pink"  
|- bgcolor="Pink"  
| 9 || ±33.5 V common return || ±33.5 V common return
! 9
| ±33.5 V common return || ±33.5 V common return
|- bgcolor="Pink"  
|- bgcolor="Pink"  
| 8 || −33.5 V filtered DC || −33.5 V filtered DC
! 8
| −33.5 V filtered DC || −33.5 V filtered DC
|- bgcolor="LightGreen"
|- bgcolor="LightGreen"
| 7 || Collector lead of NPN series pass || Emitter lead of NPN series pass
! 7
| Emitter lead of NPN series pass || Collector lead of NPN series pass
|- bgcolor="Black"
|- bgcolor="Black"
|   || ||
| || ||
|-  
|-  
| 6 || No connection || bgcolor="LightGreen" | Base lead of NPN series pass
! 6
| bgcolor="LightGreen" | Base lead of NPN series pass || No connection
|- bgcolor="LightBlue"  
|- bgcolor="LightBlue"  
| 5 || 17.5 V<sub>AC</sub> winding || 17.5 V<sub>AC</sub> winding
! 5
| 17.5 V<sub>AC</sub> winding || 17.5 V<sub>AC</sub> winding
|- bgcolor="Pink"  
|- bgcolor="Pink"  
| 4 || +11.5 V common return || +11.5 V common return
! 4
| +11.5 V common return || +11.5 V common return
|- bgcolor="Pink"  
|- bgcolor="Pink"  
| 3 || +11.5 V common return || +11.5 V common return
! 3
| +11.5 V common return || +11.5 V common return
|- bgcolor="Pink"  
|- bgcolor="Pink"  
| 2 || +11.5 V filtered DC || +11.5 V filtered DC
! 2
| +11.5 V filtered DC || +11.5 V filtered DC
|- bgcolor="LightBlue"  
|- bgcolor="LightBlue"  
| 1 || 25 V<sub>AC</sub> winding #2 || 25 V<sub>AC</sub> winding #2
! 1
| 25 V<sub>AC</sub> winding #2 || 25 V<sub>AC</sub> winding #2
|-
|-
|}
|}


Interface connections viewed from rear of power module. Pins 14 through 28 are used for signal connections.
Interface connections viewed from front of power module. Pins 14 through 28 are used for signal connections.
 
25 V<sub>AC</sub> winding connections 1A, 13A are in phase, i.e. for 50 V<sub>ct</sub> connect 1B-13A as for example in the [[PS502]].


===Pin group function legend===
===Pin group function legend===
Line 65: Line 86:


==Connector keys==
==Connector keys==
* between pins 6 and 7 - TM500 standard
 
* between pins 19 and 20 - power supply family modules
The standard TM500 frames simply have a key between pins 6 and 7 as shown in Figure 3-1 from the [[Media:070-2088-00.pdf|TM 500 Rear Interface Data Book]]:
* between pins 21 and 22 - measurement family modules
<gallery>
* between pins 23 and 24 - signal source family modules
070-2088-01 TM500 Rear Interface Data Book Figure 3-1.png
* between pins 25 and 26 - [[SC502]] family
</gallery>
* ...
 
Other keys are added for options, depending on the specific connectivity requirements for families of plugins.
 
The [[TM500 Series Rear Interface Data Book]] details the various positions for the optional barrier keys and are summarized here for reference.
 
{| class="wikitable"
|+ Barrier Key Positions
|-
!width="5%"| Pins
!width="15%"| Purpose
!width="80%"| Example plugins
|-
! 25-26
| [[SC502]] Family
|
|-
! 24-25
| Logic Analyzer Family
|
|-
! 23-24
| Signal Source Family
| [[AF501]], [[AM501]], [[AM502]], [[FG501]], [[FG502]], [[FG503]], [[PG501]], [[PG502]], [[PG505]], [[PG506]], [[PG508]], [[RG501]], [[TG501]], [[SC501]], [[SG502]], [[SG503]], ...
|-
! 22-23
| [[TR502]]
|
|-
! 21-22
| Measurement Family
| [[DC501]], [[DC502]], [[DC503]], [[DC504]], [[DC505]], [[MR501]], ...
|-
! 19-20
| Power Supply Family
| [[PS501]], [[PS503]], [[PS505]], ...
|-
! 17-18
| DMM Family
|
|-
! 6-7
| TM500 standard
|
|-
|}
 
==Power ratings==
{| class="wikitable"
|-
! Mainframe
!colspan=3 | Standard slots
!colspan=3 | [[TM500 high-power compartments|High-power slot]]
 
|-
| rowspan=3 | [[TM501]] 
| +11.5 V  || 17 V<sub>AC</sub> || | 2×25 V<sub>AC</sub> ||  ||  || 
|-
|colspan=2 align=center| 1.0 A shared || 2×0.5 A 
|colspan=3 align=center| 
|-
|colspan=3 align=center| ±33.5 V 0.5 A shared
|colspan=3 align=center| 
 
|-
| rowspan=3 | [[TM502]] 
| +11.5 V  || 17 V<sub>AC</sub> || | 2×25 V<sub>AC</sub> ||  ||  || 
|-
|colspan=2 align=center| 60 VA shared || 2×0.5 A 
|colspan=3 align=center| 
|-
|colspan=3 align=center| ±33.5 V 0.7 A shared
|colspan=3 align=center| 
 
|-
| rowspan=3 | [[TM503]] 
| +11.5 V  || 17 V<sub>AC</sub> || | 2×25 V<sub>AC</sub> ||  ||  || 
|-
|colspan=2 align=center| 3.9 A or 90 VA shared || 2×0.5 A 
|colspan=3 align=center| 
|-
|colspan=3 align=center| ±33.5 V 0.7 A shared
|colspan=3 align=center| 
 
|-
| rowspan=3 | [[TM504]] 
| +11.5 V  || 17 V<sub>AC</sub> || | 2×25 V<sub>AC</sub> || +11.5 V  || 17 V<sub>AC</sub> || | 2×25 V<sub>AC</sub>
|-
|colspan=2 align=center| 3.6 A shared  || 2×0.5 A
|colspan=2 align=center| 3.6 A shared  || 2×1 A
|-
|colspan=6 align=center| ±33.5 V 1.4 A shared
 
|-
| rowspan=3 | [[TM506]] 
| +11.5 V  || 17 V<sub>AC</sub> || | 2×25 V<sub>AC</sub> || +11.5 V  || 17 V<sub>AC</sub> || | 2×25 V<sub>AC</sub>
|-
|colspan=2 align=center| 5.2 A shared  || 2×0.5 A
|colspan=2 align=center| 4 A shared    || 2×1.2 A
|-
|colspan=6 align=center| ±33.5 V 1.75 A shared
 
|-
| rowspan=3 | [[TM515]]
| +11.5 V  || 17 V<sub>AC</sub> || | 2×25 V<sub>AC</sub> ||  ||  || 
|-
|colspan=2 align=center| 6.5 A or 150 VA shared || 2×0.5 A 
|colspan=3 align=center| 
|-
|colspan=3 align=center| ±33.5 V 1.75 A shared
|colspan=3 align=center| 
 
|-
|}


==See also==
==See also==
* [[TM5000 Series plug-in interface]]
* [[TM5000 Series plug-in interface]]
* [[Media:070-2088-00.pdf|Tektronix TM 500 Series Rear Interface Data Book (PDF)]]
* [[TM500 Series Rear Interface Data Book]]
* [http://w140.com/smb/TM5X_RIB_FREE.pdf Tektronix TM 500 Series Rear Interface Data Book (OCR, PDF)]
* [[Media:TM500_Supplies_sm.pdf|Suggested Power Supply Circuits for the TM500 Blank Plug-in Kit]]
 


[[Category:Plug-in interfaces]]
[[Category:Plug-in interfaces]]
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