Shanghai STEP Electric Corporation
Chapter 6 Introduction to the supporting products
Table 6.16 SM-04-VL/B3 plug-in specification and port definition
Serial port, of which Pin 1 for TXV+, Pin 2 for TXV-, Pin 3 for TXA+
and Pin 4 for TXA- respectively.
Up-call terminals, of which Pin 1- and Pin 2+ for button indicator, Pin 3
and Pin 4 for button input.
Down-call terminals, of which Pin 1- and Pin 2+ for button indicator, Pin
3 and Pin 4 for button input.
Pin 3 and Pin 4 of JP5 connected to the normal open contact of elevator
–lock switch
Pin 3 and Pin 4 of JP6 is the port for passenger button
The dip switch of serial communication terminal resistor , right turn
mean the connection of built-in 120Ω resistor
SW1.2 ON for display in English, OFF for display in Chinese and
English together.
SW1.3 OFF in standard mode
SW1.4 ON for setting address codes of the display board, and SW1.4
OFF after setting finished.
6.5.7 Call& LED display control panel SM-04-VSD
The outside view and installation dimension of SM-04-VSD
Fig 6.27 SM-04-VSD outside view