635-SERIES HARDWARE M ANUAL
Chapter-Page
2-27
4.4 Installing a 635 DSI Board (Dual Serial Interface)
If you are not installing a 635-DSI board, skip this section.
635-DSI - BOARD FEATURES
This section covers the 635-model DSI Board.
See the Appendix for the 600-model DSI Features
.
Board Reset Switch (SW1):
for resetting the board to initialize the Jumpers and Dipswitch settings, or reset operation.
Binary Dipswitch (SW2):
for assigning the Board ID (before installing), as well as Option-B.
Termination (JP4/JP5) 2-Pin Jumpers:
allows installer to set the Termination if the board is at EOL (independent sections)
(factory default = OPEN). Matching
120 Ω Termination Resistor must be installed at the extreme end of line
.)
(
OPTIONAL
)
Passthru Power Output (JP1/JP2) 2-Pin Jumpers:
ability to configure the pass-thru voltage from the power input
(J2).
(factory def = UNSET) 12V pos. passes power from J2 Pin-1; 24V pos. passes pwr from J2 Pin-3 via separate 24v P.S.
Power Input (J2)
for 12V on PIN-1 from controller DC Power Supply; 24V on PIN-3 from separate DC Power Supply.
Power LED (D3)
indicates board is connected to the power harness and the power is on (solid/on).
I2C Data Input (J4)
for ribbon cable connection to the CPU Board I2C Data Buss.
RS-485 Connectors (J5/J6)
used for RS-485 Communication with various multi-drop devices (see Section for wiring).
LEDs for XMIT/RECV (D5/D6, D7/D8):
blinking or flickering
indicates RS485 Communication is detected.
Figure 20 – 635 DSI Board Features:
Diagram shows board component-side up. The board installs component-side down. Power input should be on the same
side as the power harness when the board is installed in the controller.
