ADLINK ND-6067 - Manual (Page 77)

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5.1 Overview of ND-6050
ND-6050 is a digital input and output module. The digital input channels can
monitor active TTL signals, and sense passive switch on/off signal because
of the internal pull high resistors. The convenient open collector output
channels can sink up to 50 mA current. Combining with the relay devices, it
is possible to control the high power devices by programming output channel
of the ND-6050.
5.1.1 Features of ND-6050
z 7 channels digital input
z 8 channels open collector digital output
z Programmable host watchdog timer for host failure protection
z Internal watchdog timer for device failure protection
z Easy programming by software
z Easy installation and wiring
5.1.2 Specifications of ND-6050
‹ Interface
♦
Interface : RS-485, 2 wires
♦
Speed (bps) : 1200, 2400, 4800, 9600, 19.2K, 38.4K, 57.6K,
115.2K
‹ Digital Input
♦
Channel numbers : 7
♦
Switching Level :TTL
♦
Pull up resister : 10K
Ω
♦
Maximum current : 0.5mA