AERCO XPC GATEWAY Communications - Manual (Page 82)

GATEWAY COMMUNICATIONS MANUAL
82
5. See table below to wire the XPC to a modem.
Modem (25-pin)
Null Modem
Cable
Null Modem
Cable
(9-pin)
S2-DB9
(9-pin)
Device
(5 pin)
TX - pin 2 TX - pin 3 TX - pin 3 TX - pin 1
RX - pin 3 RX - pin 2 RX - pin 2 RX - pin 2
DTR - pin 20 DTR - pin 4 DTR - pin 4 DTR - pin 3
DCD - pin 8 DCD - pin 1 DCD – pin 1 DCD - pin 4
GND - pin 7 GND - pin 5 GND - pin 5 GND - pin 5
Set the following DIP switch settings on the modem:
NOTE
A US ROBOTICS EXTERNAL MODEM IS HIGHLY RECOMMENDED.
6. Turn on the XPC's power.
SECTION 12 JOHNSON CONTROLS (N2)
N2 is not a standard protocol, but one that was created by Johnson Controls, Inc. that has been made
open and available to the public. Johnson Controls is the only company to use the N2 Bus protocol as
their standard network protocol. Because it is open and still prevalent within the industry, N2 is a
standard offering for our XPC translators.
12.1 CONFIGURING THE AERCO XPC FOR N2 FOR PORT 1A
1. Turn off the XPC's power.
2. Using the rotary switches, set the translator's address. Set the Tens (10's) switch to the tens digit of
the address, and set the Ones (1's) switch to the ones digit.
EXAMPLE
: If the translator’s address is 01, point the arrow on the Tens (10's) switch to 0 and the
arrow on the Ones (1's) switch to 1. See illustration below.