TopBox Technical Manual

Electronics Components

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< Introduction ] [ Electronics Design >

Fig. 1. TopBox electronics control unit with component identifier labels.

The components of the TopBox electronics control system (Fig. 1) are listed here as in the User Manual, followed by additional description and links to technical reference documents:
  • NEMA1 Enclosure
    Mfg: Hubbell/Weigmann
    N1 SINGL DOOR MED WALL MT 24X24X8 IN.
    24 x 24 x 8.75 inch (HxWxD) NEMA 1 enclosure, single-door, medium wall mount
    Vendor: Automation Direct #N1C242408LP
    Product Overview (pdf)
    Enclosure Specifications (pdf)
    Subpanel Specifications (pdf)
  • Mounting Accessories
    • DIN Mounting Rail
      External Width: 35mm
      Material: Steel
      Length: 1m
      Fixing Centers: 36mm
      Mfg: SPC Technology #SPC10576
      Vendor: Newark.Com #19C7295
    • DIN Rail Mounting Clip, Black
      Mfg: Winford Engineering #DINM15-RC

  • PEM
    Power Entry Module: external AC power input, master ON/OFF switch, power line surge protection

    Desc: MOD PWR ENTRY 15A 250V SCREW
    Current: 15A
    Features: Circuit Breaker, Non Illuminated, Switch On/Off
    Filter Type: General Purpose
    Fuse Drawer: Fuse Not Required
    Mounting Type: Panel Mount, Screw Hole
    Termination Style: Quick Connect - .250" (6.3mm)
    Type: IEC 320-C14 (Male Pins)
    Voltage: 250V
    Mfg: Schurter #DF12.0031.9110.1
    Vendor: Mouser #693-DF12003191101
    Reference Manual (pdf)
  • TBN
    Terminal Block Neutral: terminal block to distribute AC power to components
  • TBH
    Terminal Block Hot: terminal block to distribute AC power to components

    Desc: 6-Position Dual-Row Barrier Strip
    Spec: 3/8" Centers, 12-22 AWG 150V 15-20A
    Vendor: Radio Shack #274-659
    Desc: 8-Position Jumper Strip
    Vendor: Radio Shack #274-650
  • PS1
    Power Supply 1: 24 VDC linear power supply 1
  • PS2
    Power Supply 2: 24 VDC linear power supply 2

    Mfg: LAMBDA #HSD-24-4.8
    Vendor: Newark #71K5048
    Spec: 24VDC @ 4.8 A, 115.2 W, single output, parallel operation ok
    Size: 4.88x8.82x2.75 in
    Weight: 7.48 lbs
    Information Sheet (pdf)
    Outline Drawing (pdf)
    Reference Manual (pdf)
  • F1
    Fuse 1: external power line fuse for PS1
  • F2
    Fuse 2: external power line fuse for PS2

    Desc: Screw-Cap Panel Mount Fuse Holder
    Vendor: Radio Shack #270-367
    Fuse: 2.0-Amp 250V 1-1/4" × 1/4" Slow-Blow Fuse
    Vendor: Radio Shack #270-1023
  • MC1
    Motor Controller 1: motor controller for FW1
  • MC2
    Motor Controller 2: motor controller for FW2

    Mfg: Oriental #ASD24B-AP
    Desc: Alpha Step Driver Built-In Controller
  • MC3
    Motor Controller 3: motor controller for autoguider linear positioner

    Mfg: Oriental #ASD13A-AP
    Desc: Alpha Step Driver Built-In Controller
  • I/OTB1
    I/O Terminal Block 1: I/O connections for MC1
  • I/OTB2
    I/O Terminal Block 2: I/O connections for MC2
  • I/OTB3
    I/O Terminal Block 3: I/O connections for MC3

    Mfg: Oriental #CC36T1 Connector-Terminal Block Conversion Unit
    Desc: 36-pin I/O Cable with Terminal Block
  • STB1
    Signal Terminal Block 1: Serial port and sensor connections for MC1
  • STB2
    Signal Terminal Block 2: Serial port and sensor connections for MC2
  • STB3
    Signal Terminal Block 3: Serial port and sensor connections for MC3

    Mfg: Oriental #CC20T1 Connector-Terminal Block Conversion Unit
    Desc: 20-pin I/O Cable with Terminal Block
    Product: Oriental Motor Alpha Step Closed Loop Stepping Motor and Driver Package with Accessories
    Orientalmotor Alpha Step Series Brochure (pdf)
    Orientalmotor Alpha Step Operating Manual (pdf)
  • SSR
    Solid State Relay: electromagnetic brake switch for autoguider linear positioner

    Type: MOS 24VDC/12-300VDC 1A, MICROOPTO, Solid-state relay, DIN Rail Mount
    Input: 24VDC, 4-8mA
    Output: 24VDC, 1A continuous, 300VDC varistor protection
    Mfg: Weidmuller #8937830000
    Vendor: Newark #50R8845
    Datasheet (pdf)
  • TDR
    Time Delay Relay: startup signal delay for motor controller initialization

    Mfg: Macromatic #SS-660222 Time RangerTM Time Delay Relay
    Socket: Macromatic #70169-D
    Technical Specifications (pdf)
    Sockets and Accessories (pdf)
  • FPS
    Focuser Power Supply: power supply for autoguider focuser controller
  • FOC
    Focuser Controller: autoguider focuser controller

    Mfg: JMI SmartFocus 232 PC Focusing System
    Operator's Guide (pdf)
    Controller Manual (pdf)
  • SPSP
    Serial Port Surge Protector: surge protector for serial control lines

    Mfg: APC #P232R
    Desc: RS232 Modular Data Line Surge Protector
    Lines Protected: Pins 1-8 on RJ-45 connector
    Mode of Protection: Between send/receive pairs and any signal line to ground
    Installation Manual (pdf)
  • FC
    Focus Control Jack: panel jack for focuser control line to TopBox
  • Desc: Cat 5E RJ45 Data Coupler Insert
    Mfg: On-Q Legrand #WP3451-WH-V1
    Information Sheet (pdf)
  • HS
    Home Sensor Jack: panel jack for filter wheel and autoguider positioner home sensor lines to TopBox
  • PCM
    PC Motor Jack: panel jack for motor control line from control computer
  • PCF
    PC Focuser Jack: panel jack for focuser control line from control computer

    Desc: RJ-25 6 wire punchdown phone jack
    Mfg: On-Q Legrand #F9042-BK-V1
    Desc: 2-Port Keystone Wall Plate
    Mfg: On-Q Legrand #F3402-WH-V1
    Installation Diagram (pdf)
  • DB9-RJ12 Adapter
    Desc: 6-conductor DB9-RJ12 adapter
    Mfg: SPC Technology #SPC19786 (DB9 Male), #SPC19787 (DB9 Female)
    Vendor: Newark #84K8550 (DB9 Male), #84K8551 (DB9 Female)
    84K8550 Datasheet (pdf)
    84K8551 Datasheet (pdf)

 

Fig. 2. TopBox home limit switches with wiring details from two different angles.

  • Home Limit Switches
    Mfg: Omron Subminiature Snap Action Switch #SS-5GL2-F
    Spec: 4A@30VDC, hinge roller lever, SPDT, 16g contact operating force, solder terminal
    Vendor: Allied #821-1338
    Datasheet (pdf)


Last modified: Nov 15, 2012
David McDavid

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