Conference netcad::hub_mgnt

2320.0. "Dechub90 series standalone power supplies" by NPSS::MATTOCK (OTTO) Fri May 26 1995 10:13

+---------------------------+TM
|   |   |   |   |   |   |   |
| d | i | g | i | t | a | l |              TIME DEPENDENT CASE  
|   |   |   |   |   |   |   |
+---------------------------+

 
      TITLE: DEChub 90 Series Products         DATE: 25-May-1995
             Power Supplies for Standalone 
             applications

      AUTHOR: Michael Mattock                TD #: 
      DTN: 226-5170
      ENET:NPSS::Mattock		      CROSS REFERENCE #'s: None
      DEPARTMENT: Network Product Support     (PRISM/TIME/IPMT's)  
                                                 
      INTENDED AUDIENCE: ALL                     PRIORITY LEVEL:2
      (U.S./EUROPE/GIA)                         (1=TIME CRITICAL,
                                                 2=NON-TIME CRITICAL)
      =====================================================================

      PROBLEM: Misapplication of standalone power supplies with
               DEChub 90 series products.

      RESOLUTION/WORKAROUND: 
  
                       See attached memo to clarify which standalone 
                       power supply to be applied for each DEChub90
                       series product.


    Subject: Digital 90 Series Standalone Power Supplies.      REV. 02

Dual voltage 
------------

 A new power supply is being introduced to replace the H7827-AA and H7827-BA 
power supplies which are used when various "90 series" Hub products are 
installed "stand alone".  The new power supply, model H7867-AA, Digital Part 
Number 30-41713-01, may be used as a UNIVERSAL replacement for BOTH variations
of the H7827 power supply.  The H7827-AA and H7827-BA are NOT interchangeable
and will only function properly when used in conjunction with the options 
listed below. 


Part Number  DC Output Specifications       AC Input
-----------  ------------------------       --------             
H7827-AA     +5.1V @1.5A, +12.1V @.86A*     100-240VAC Removable Power Cord

H7827-BA     +5.1V @2.5A, +12.1V @0.88A     100-240VAC Removable Power Cord

3041713-01   +5.1V @4.0A, +12.1V @1.0A      90-265VAC  Removable Power Cord

*Note: H7827-AA requires a min load of .003A on 12.1V for proper power 
       regulation of both voltages.


 o  H7867-AA is a UNIVERSAL replacement and MAY be used with all of the
    following options.

 o  H7827-BA or H7867-AA MUST	     o	H7827-AA can be be used ONLY
    be used with these options:		with the following options:

	   DEFMI				DEFAR 
           DETMI				DENMA 
           DERMN				DEWGB 
           DTRMN				DEWGF 
           DEWBR                                
           DEWB1 	
	   DEWB2 

Pinouts for H7827-AA/BA/H7867-AA power supply. 

     Pin                  Output
     ---------------------------------
     1                   +5  Volts
     2                   +12 Volts
     3                   +5  Volts
     4                   +12 Volts
     5                   Return
     6                   Return
     7                   Return
     Shield              Tied to Chassis ground         

     -------------------------------------
                        5  6  7
                        o  o  o
                     3 o  [x]  o 4
                         o   o
                         1   2
                     NOT TO SCALE
       Connector physical pinout looking into connector on end
       of DC cable.


Single Voltage       
--------------

 The single voltage supplies have two variations.  The H7082-AA is intended for
120V use only and doesn't require a power cord.  Instead, it plugs directly 
into a standard US Style three prong electrical outlet.  The H7082-AB is a 
universal supply and operates at 100-240VAC 50/60Hz, using a removable power 
cord with an IEC style connector. 


Part Number  DC Output Specifications       AC Input
-----------  ------------------------       --------             
H7082-AA     +5.1V @1.8A                    100-120VAC Only No Power Cord
H7082-AB     +5.1V @1.8A                    100-240VAC Removeable Power Cord

   Used on:

     DSRVD           
     DSRVG
     DSRVE
     DSRVH 
     DECMR
     DETMR
     DEFMR
     DEIAP
     DEWAR
     DEWIR 
     DEWA2
     DSRZF

Pinouts for H7082 power supply

   Pin                  Output
-------------------------------------
    1                   +5  Volts
    2                   Return
    3                   +5  Volts
    4                   Return
    5                   +5  Volts
    6                   N/C
    7                   Return
    Shield              Tied to chassis ground
          
-------------------------------------

                        5  6  7
                        o  o  o
                     3 o  [x]  o 4
                         o   o
                         1   2
                     NOT TO SCALE
       Connector physical pinout looking into connector on end
       of DC cable.

CAUTION:  Do not attempt to use any of the H7827 or H7867 Dual Voltage 
	  supplies in conjunction with 5 Volt only devices.  Although
	  all supplies utilize the same "DIN" style connector, they are
	  wired differently.