Dascom T2150 RS232C/TTY Interface Module Operators Manual Manuale Utente Scaricare il pdf (Pagina 10)

Jumper Function

B5 open*

B5 closed

no connection GND and chassis

GND and chassis connected

Slide switches Function

S1 in position 1 T-Loop passive

S2 in position 1 R-Loop passive

S1 in position 2* T-Loop active

S2 in position 2* R-Loop active

DIP switches Function

S3.1 closed / S3.2 open level position RDY

S3.1 open / S3.2 closed* level position RDY\

S3.3 open / S3.4 closed connects RDY or RDY\ with Pin 2 or T-Loop

S3.3 closed / S3.4 open* connects TxD with Pin 2 or T-Loop

S4.1 closed* Signal RDY or RDY\ on Pin 25

S4.2 open* protect resistor in R-Loop is activated

S4.3 open* protect resistor in T-Loop is activated

S4.4 closed in RS232C mode

S4.4 open* in TTY 20 mA mode

Wrong settings/combinations can destroy components

and/or lead to malfunctions (e.g. sporadic transmission

errors)!

STOP

Jumper Settings and DIP Switches

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 43 44

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Dascom T2150 RS232C/TTY Interface Module Operators Manual Manuale Utente Pagina 10