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From: donm@pnet07.cts.com (Don Maslin)
Newsgroups: comp.os.cpm,comp.sys.zenith.z100
Subject: Re: Need help 8" drive jumpers
Message-ID: <1990Sep12.182503.14448@simasd.uucp>
Date: 12 Sep 90 18:25:03 GMT
Sender: pnet@simasd.uucp (People-NET)
Organization: People-Net [pnet07], San Diego, CA
Lines: 49

The following was previously forwarded by e-mail to Myron Calhoun:

             REMEX 4000/4001 8" DS FLOPPY DISK DRIVE
               Customer Cut/Add Trace Options
 
 
  Trace                                            Shipped from Factory
Designation           Description                     Open    Short
  7A         Termination for Multiplexed Inputs               Plugged
  DS1        Drive Select 1 Input Pin                            X
DS2,3,4      Drive Select 2,3,4 Input Pins              X
1B,2B,3B,4B  Side Select Option Using Drive Select      X
  RR         Radial Ready                                        X
  RI         Radial Index and Sector                             X
R (Shunt 5E) Option Shunt for Ready Output                       X
  2S         Two-Sided Status Output                    X
4000/4001    Sector Option Enable                     4000     4001
I (Shunt 5E) Index Output                                        X
S (Shunt 5E) Sector Output                                       X
  DC         Disk Change Option                         X
HL (Shunt 5E) Stepper Power from Head Load                       X
  DS         Stepper Power from Drive Select            X
  WP         Inhibit Write When Write Protected                  X
  NP         Allow Write When Write Protected           X
  D          Alternate Input - In Use                   X
  DL         Door Lock Option                                    X
A,B,X (5E)   Radial Head Load                                    X
  C          Alternate Input - Head Load                X
Z (Shunt 5E) In Use from Drive Select                            X
  Y          In Use from Head Load                      X
  S1         Side Select Option Using Drive Select      X
  S2         Standard Side Select Option                         X
  S3         Side Select Optioon Using Drive Select     X
  TS,FS      Data Separation Option Select              FS       TS
               TS - True Separation
               FS - False Separation
                  (The Data Separation goes out of
                   phase in the IBM Address Mark Fields)
-5V, -15V    -5 Volt Supply Option                               X
U4,U6,U8,U   Unselect Ready                             X
AA,BB,CC     Disk Change Output                                BB to CC
 
Shunt 5E is a 16 pin programmable shunt at location 5E on the circuit
board.
 

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