Installing and configuring a serial connection, Step 1: connect to the ultrakey lite serial port, Table 4-1 – Honeywell ULTRAKEY LITE HJC5000 User Manual

Page 49: Serial port com1 and com2 pin assignments

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UltraKey Lite Controller Installation and User Guide

Document 800-07422 Rev A

49

08/10

Installing and Configuring a Serial Connection

Step 1: Connect to the UltraKey Lite Serial Port

Note

For a list of accessories see

Shipping Checklist

on page

18

and for port

connections see

UltraKey Lite Port Connections and Descriptions

on page

19

.

Note

COM1 (RS422) and COM2 (RS485) are configured using the controller LCD
menu and cannot be used at the same time. See

Table 4-1

below.

Table 4-1

Serial Port COM1 and COM2 Pin Assignments

Serial Port

Type

Pin

Signal

COM1

RS422

1

RX +

2

RX –

5

GND

7

TX –

8

TX +

RS485

7

T/R –

8

T/R +

COM2

RS232

4

RXD

5

GND

6

TXD

RS485

1

T/R +

2

T/R –

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