Product Lines > Isolated Signal Conditioning Modules > PCLD-785B
PCLD-785B 16/24-channel Relay Output Boards        Larger image (23 Kb) Introduction Specifications Ordering Information Datasheet Download (pdf 98Kb)
INTRODUCTION
The PCLD-785 carries 16 SPDT electromechanical relays and a 20-pin box header compatible with the digital outputs of most PC-LabCards. The PCLD-785B is a new expanded version of the PCLD-785 which features 24 SPDT electromechanical relays and an additional 50-pin Opto-22 compatible connector. The number of output channels available on the PCLD-785B depends on the connector you use. The new card's 50-pin connector accesses all 24 channels, while its 20-pin connector has access to 16 channels. The PCLD-785B automatically selects the correct control logic for the connector in use.
SPECIFICATIONS

General Specifications

• Input connection: 50-pin Opto-22, 20-pin box header
• Input channels: 24 (50-pin conn.), 16 (20-pin conn.)
• Relay type: SPDT (Single-pole Double-throw) Form C
• Contract rating:
  AC: 120 V @ 0.5 A
  DC: 30 V @ 1 A
• Contact resistance: <100 m ohms
• Operation time: 5 msec. max.
• Release time: 5 msec. max.
• Insulation resistance: 100 m ohms
• Life expectancy: 5 x 10⁵ @ AC: 110 V / 0.3 A
  xxxxxxxxxxxxxxxxxxxxxx@DC: 24 V / 1.25 A
• Output connector: Barrier strip terminal block
• Power requirements:
  Using the 20-pin box header:
  +5 V_DC: Jumper select either PC bus or external supply
  +12 V_DC: Jumper select either PC bus or external supply
  You must use an external 12 V supply when you use the 50-pin box header.
• Control logic:
  20-pin box header conn.: Input TTL high (+5 V) = Relay on
  50-pin Opto-22 conn.: Input TTL low (0 V) = Relay on
• Power consumption:
  +5 V @ <100 mA;
  +12 V @ 33 mA for each relay
• Dimensions: 132 mm x 220 mm (5.2" x 8.7")

ORDERING INFORMATION

• PCLD-785B : 16/24-channel relay output board, user's manual, 1-meter 20-pin flat cable assembly (P/N PCL-10120-1), and 1.2-meter 50-pin flat cable assembly (P/N PCL-10150-1.2)
• PCLD-785 : 16-channel relay output board, user's manual, 1-meter 20-pin flat cable assembly (P/N PCL-10120-1)
• PCL-10120-1 : 20-pin flat cable assembly, 1 m
• PCL-10120-2 : 20-pin flat cable assembly, 2 m
• PCL-10150-1.2 : 50-pin flat cable, 1.2 m (connects the PCL-722 or 724 to the PCLD-885, 782B or 785B)

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