AB | 1771-WHFN | NEW & ORIGINAL

Contact: Miya

Job Title: Sales Manager

Skype: live:miyazheng520

Email: sales@amikon.cn

Tel: 86-18020776792(Whats App )

QQ :2851195450

ATTENTION!

PAYMENT: T/T 100% IN ADVANCE

Lead Time : 3-5 Days

Minimum Order Quantity : 1 Piece

Warranty : 1 Year

Shipment: DHL,UPS,FEDEX,ARAMAX,TNT,etc.

1771-WHFN

Brand Name                 AB

Product reference       1771-WHFN

You can use this module in a Series A or B 1771-A1B, -A2B, -A3B, -A3B1, and -A4B chassis. The module is also compatible in a 1771-AM1 or -AM2 I/O chassis. You can use any TTL device that meets the output logic level specification of -0.2V dc to +0.8V dc (low), and 2.0V dc to 5.25V dc (high). This module contains input filtering to limit the effects of voltage transients caused by contact bounce and/or radiated electrical noise. The delay due to filtering is less than 1ms. 

For maximum noise immunity, the output of the TTL device should have a pull-up resistor of 1k ohm (typical). Add an external pull-up resistor to the output terminals of the device, if necessary. If you add a pull-up resistor, be sure the TTL device maintains the low state requirement of -0.2V dc to +0.8V dc with the increased load. The TTL module requires power from two sources: the I/O chassis backplane, and a +5V dc Class 2 power supply that you provide for transmission of TTL signals. 

Backplane The TTL module receives its power through the 1771 I/O chassis backplane from the chassis power supply. The module requires 130mA from the output of this supply. Add this to the requirements of all other modules in the I/O chassis to prevent overloading the chassis backplane and/or backplane power supply. Customer Supply You must provide a separate +5(+0.25)V dc Class 2 power supply for the TTL inputs of the module and for your TTL output devices. Your module requires 380mA from the output of your supply. Ripple should not exceed 50mV peak to peak. The TTL input module is shipped in static-safe packaging to guard against electrostatic discharge damage. Observe the following precautions when handling the module. 

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