Shanghai STEP Electric Corporation
Chapter 6 Introduction to the supporting products
Table 6.13 Terminal Definitions and Specification of SM-04-VHL
Serial port, of which Pin 1 for TXV+, Pin 2 for TXV-, Pin 3 for TXA+ and Pin 4
for TXA- respectively.
Down-call terminals, of which Pin 3+ and Pin 4- for button indicator, Pin 1 and
Pin 2 for button input.
Up-call terminals, of which Pin 3+ and Pin 4- for button indicator, Pin 1 and Pin
2 for button input.
Pin 1 and Pin 2 JP8 for the input of normal open contact of the lockout switch,
Pin 3 and Pin 4 for stand-by.
output terminal for landing arrival gong up
common port for landing arrival gongs up and down
output terminal for landing arrival gong down
output terminal for landing arrival lamp up
common port output for landing arrival lamp up and down
output terminal for landing arrival lamp down
Resistor jumper for serial communication terminals for connecting the 120Ω
built-in resistor when jumpers are put on together.
Set the address codes of the display Board with the jumper on, after that the
jumper MUST BE REMOVED.
Inserting the jumper on the landing call display Board of the elevator locked out
shows the lockout input on this Board in effect. Only ONE of the display Boards
of the elevator shall be jumped to S2.
6.5.4 Call & LCD Control Board SM-04-UL
◌ Outside View & Mounting Dimensions of SM-04-UL