Roger UT-2 RS232-RS485 Interface

Roger UT-2 RS232-RS485 Interface

The UT-2 operates as an electrical converter between RS232 and RS485 communication interfaces, it can be used for programming of single PR series access controller or for management of a networked access system RACS (Roger Access Control System). The UT-2 is delivered in black plastic case and offers three signalization LEDs. The UT-2 is equipped with 1.5m cable terminated with DB-9 connector which is dedicated for connection to PC, connection with an access system or individual controller is carried out through screw terminals

RS485 TRANSMISSION CONTROL
Normally, the UT-2 operates in receive mode, it means that all data received by UT-2 through RS485 lines is shifted immediately to RS232 serial interface. With the first byte of data received from RS232, the UT-2 immediately switches the RS485 interface (lines A and B) into transmit mode. The RS485 remains in that mode as long as data is received through RS232. The RS485 returns automatically to receive mode after 1.5 ms time from the moment when last bit of data has been received from RS232.

TECHNICAL DATA:

• supply voltage: 10-15VDC
• average current consumption: 60mA
• max. current consumption: 150mA
• max. communication distance for RS232 15m
• max. communication distance for RS485 1200m
• working temperature: 0°C- +55°C
• dimensions: 68x100x35mm
• weight: 80g