Port Specification; Pin Assignments Of Rs-485 Port Signals (Ep1 / Ep2) - NetModule NB3710 User Manual

NB3710
User Manual for NRSW version 4.4
RS-485 Port Specification (Option Sa)
The RS-485 port has the following specification (bold characters show the default configuration):
Feature
Protocol
Baud rate
Data bits
Parity
Stop bits
Software flow control
Hardware flow control
Galvanic isolation to enclosure
Internal bus termination
Max. cable length
Cable shield
Cable type
Max. number of transceivers on bus
Max. number of nodes
Table 3.34.: Pin Assignments of RS-485 Port Signals (EP1 / EP2)
Specification
3-wire RS-485 (GND, A, B)
600, 1 200, 2 400, 4 800, 9 600, 19 200, 38 400,
57 600, 115 200, 230 400, 460 800
7 bit, 8 bit
none, odd, even
1, 2
none, XON/XOFF
none
1500 V
none
10 m
mandatory
Twisted Pair
256
256
Table 3.33.: RS-485 Port Specification
EP Pins Signal
1 / 5 GND
2 / 6 TxD /RxD
3 / 7 TxD+/RxD+ (B)
4 / 8
DC
(A)
36