Santerno SMART STRING BOX LT Guía Rápida página 6

o Connect RS-485 comms cable to terminals M1 and M2 (in-out connection) to ES977 board by
using a "Belden 3106A Paired EIA Industrial RS-485 PLTC/CM" cable and fasten the cable braiding
to the copper cable glands.
o Set up the rotary switches for Modbus address on ES1004 board and DIP-switch SW1 for
termination enable/disable on ES977 board.

Connect the strings.
o Open the disconnect switch, open the fuse-holders, close the string box cover.
o Plug the contacts. Pull connectors to check that plugging is correct.
A Terminal board for environmental sensors
B Cable-gland for environmental sensors
DIP-switch for the configuration of environmental
C
sensors
A Connection of string positive pole
B Connection of string negative pole
C Positive pole fuses, strings 1-8
D Negative pole fuses, strings 9-16
E Negative pole fuses, strings 1-8
F Negative pole fuses, strings 9-16
M1 RS-485 IN
M2 RS-485 OUT
F RS-485 fuses
Rotary-switch
A Modbus address
strings 1-8
Rotary-switch
B Modbus address
strings 9-16
Termination DIP-
SW1
switch