Impulse 463E - Manual (Page 6)

© Sealevel Systems, Inc. - 3 - SeaI/O User Manual
SeaI/O Hardware Description
SeaI/O Base and Expansion Modules
Base Modules connect to the host via one of the following interfaces:
E-Series - Ethernet Modbus TCP
U-Series - USB Modbus RTU
M-Series - RS-485 Modbus RTU
S-Series - RS-232 Modbus RTU
After the Base unit is installed, up to 246 additional SeaI/O N-Series Expansion
Units can be added to create an I/O network. These expansion modules interface via
RS-485 and can be located local to the Base SeaI/O device or remotely located up to
4000 feet away. Local installations should use the 5” CAT5 RS-485 pass-through
cable (Item number CA239) shipped with each N-series module to connect. Remote
expansion modules should use RS-485 twisted pair wiring from the Base unit
connected via the removable screw terminal connector.
For local installations power to the expansion modules is supplied from the Base unit
via the pass-through connectors. For remote devices, separate power is required at
each expansion unit. Refer to the Power Options section of this manual for more
information on SeaI/O power requirements and power supply sizing.
Included Communications and Expansion Accessories
SeaI/O modules are shipped with the following accessories:
E-Series (Ethernet) Item# CA246 – 1 x 7’ straight through Ethernet cable, for
connection to a hub or switch.
Item# CA251 – 1 x 7’ crossover cable, for direct connection to a
computer’s Ethernet port.
U-Series (USB) Item# CA179 – 6’ A to B USB cable.
M-Series (RS-485) No cable is included. RS-485 twisted-pair wiring connects to screw
terminals.
S-Series (RS-232) Item# KT119 – RS-232 DB9/RJ45 Kit, includes a DB9F to RJ45
adapter with RS-232 pinout (Item# DB109) and a 7’ CAT5 patch
cable (Item# CA246) for connecting SeaI/O modules to both
Sealevel and standard RS-232 serial ports.
N-Series (Expansion) KT122 – Expansion & Strap Kit, includes 5” CAT5 RS-485
interconnect cable, four metal straps, and four #4-40 metal screws,
for connecting two or more SeaI/O modules together in a “stack”.
All Models Each SeaI/O unit is shipped with 4 adhesive rubber feet that can be
attached to the bottom of the enclosure to enhance stability in table
mount applications.