Shanghai STEP Electric Corporation
Chapter 6 Introduction to the supporting products
Table 6.16 A SM-04-VL16/A 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 ON for 64 floor mode, otherwise, for 48 floor mode.
SW1.4 ON for setting address codes of the display board, and SW1.4 OFF
after setting finished.
6.5.6 In-car SM-04-VL/B3 outside view and installation
dimension