Uick, Tart, Uide – CTI Products NCB/AY with Serial Interface User Manual
Page 7
CTI Products, Inc.
NCB-AY User Guide
Quick-Start Guide
1
Q
UICK
-S
TART
G
UIDE
This Quick Start Guide provides a concise series of steps to get a pair of the NCB modules “up and running”
quickly so that initial operation may be confirmed.
It is highly recommended that, if possible, the pair of NCB/AY modules be tested in your application by first
connecting them “back-to-back” with a simple serial “null-modem” cable. Once operation is confirmed using
this connection scheme, continue by connecting the NCB/AY modules together using the actual intended
communication channel.
It is important that all LonWorks devices attached to the “NETWORK” connector of any one NCB module use
the same network transceiver . See “L
In the following steps, identify the two units as “NCB Unit 1” and “NCB Unit 2”.
Switch Settings
Set the switches on the NCB units as follows:
BAUD 1 : 7 BAUD 2 : 0 MODE 1 : 0 MODE 2 : 0
OPTION B Switches 1 through 4 : UP
OPTION A Switches 1 through 4 and 6 through 8 : UP
OPTION A Switch 5 : DOWN
Module Connection
Connect LonWorks network devices to the “NETWORK” connectors of each NCB unit (both RJ-45s
and the terminal strip are in parallel). If using the RJ-45 connector(s), connect to pins 1 & 2 (the right-
most two pins) and use caution, as other pins on these connectors carry DC power.
Connect the NCB units “back-to-back” via the “PORT 1” connector on the rear of each NCB unit
using the supplied null-modem cable.
Connect power to the NCB units via the front panel “DC IN” connector. The units can be powered-up
in any sequence. If power is applied to one unit and not the other, or the serial cable is not attached to
PORT 1 of both units, the “ERR” LED will begin to flash on the powered (or both) unit(s).
Once properly connected and powered, the “ERR” LED will be off on both units and they are now ready for
use. Any LonTalk packets entering one NCB unit will exit the other and vice-versa.