                         SEAGATE TECHNOLOGY, INC.
                            (C)opyright 1996



ST-34501FC Fibre Channel FC-AL, Dual Port (Cheetah 4LP)

  ͻ
   REAR VIEW   ST-34501FC
  ͼ
       40 pin I/O and DC Power Wall/bracket Connection
                       Female
    J1          /ĳ\      TOP (HDA)
     /  \
              (\120/)    BOTTOM

     Notes on 40 pin I/O connector:
            +12v  =  pins  2, 3, 4, 21
            +5v   =  pins  19, 20, 40
            GND   =  pins  6, 22, 23, 26, 29, 32, 35

  Mating FC connector: AMP US p/n: 787317-1 straight-in, Male 40-pin


  ͻ
   FRONT VIEW   (ST-34501FC)
  ͼ

Reserved. Shipped with cover installed.
Do not remove. Do not install jumpers
                                        Reserved
                                        Fault LED
                                        Port B Bypass LED
                                        Port A Bypass LED
                      TOP (HDA)  ͸ 1
     PWA͵::::::::::
                 *    BOTTOM     ;
                                J6      Ground
            LED                       Active LED
                                        Ground
                                        Remote LED (pin-11 +5v)

  ST34501FC drives have two ports for connection to two
  independent loops.  Both loops may be active, but only
  one of these ports may be receiving or originating data
  at any one time.  Do not connect both ports to the same
  loop.


                            ST-34501FC


       FORMATTED CAPACITY (GB) __________________4.55
       AVERAGE SECTORS PER TRACK ________________172 rounded down
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________52,656
       CYLINDERS ________________________________6,582 user
       HEADS ______PHYSICAL______________________8
       DISCS (3.5 in) ___________________________4
       MEDIA TYPE _______________________________THIN FILM/MR
       RECORDING METHOD _________________________ZBR PRML (0,4,4)
       INTERNAL TRANSFER RATE (mbits/sec)________122 to 177
       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_11.3 to 16.8
       EXTERNAL TRANSFER RATE (mbyte/sec) _______100 Sync
       SPINDLE SPEED (RPM) ______________________10,033
       AVERAGE LATENCY (mSEC) ___________________2.99
       BUFFER ___________ _______________________1024 KByte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________FC-AL 
         Fibre Channel - Arbitrated Loop, ASA II
       BYTES PER TRACK __________________________ average
       SECTORS PER DRIVE ________________________8,890,080
       TPI (TRACKS PER INCH) ____________________
       BPI (PEAK KBITS PER INCH) ________________
       AVERAGE ACCESS (ms read/write)____________7.8/8.5
         Drive level with controller overhead
       SINGLE TRACK SEEK (ms read/write) ________0.78/1.04
       MAX FULL SEEK (ms) _______________________19
       MTBF (power-on hours) ____________________1,000,000
       SHOCK (G's):
                operating (Read/Write) __________
                abnormal ________________________
                nonoperating ____________________
       ACOUSTICS (Bels typical, sound power) ____
       POWER DISSIPATION (watts/BTUs) Active ____
                                      Idle ______
       POWER REQUIREMENTS: +12V START-UP (amps) _3.0
                           +12V TYPICAL (amps) __0.94 idle
                           +5V START-UP (amps) __
                           +5V TYPICAL (amps) ___1.15 idle
                           IDLE (watts) _________16.2
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:
                        Height (inches/mm):      1.0/25.4
                        Width  (inches/mm):     4.00/101.6
                        Depth  (inches/mm):     5.47/146
                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at
the end of each 8 cylinder region.  

ZBR = Zone Bit Recording = Variable sectors per track

 -= Technical Support Automated Services =Ŀ
          SeaFAX: USA 800-SEAGATE;  England 44-1628-894084.             
             BBS: USA 408-434-1080; England 44-1628-478011;             
  Thailand 662-531-8111; Germany 49-89-140-9331; Singapore 65-292-6973; 
            France 33 1-48 25 35 95; Australia 61-2-9756-2359.          
  CompuServe: go seagate     Internet: www.seagate.com; ftp.seagate.com 
 

Seagate reserves the right to change, without notice, product
offerings or specifications. (12/11/96)

