User's Manual
Networking Multiple prox.pad plus Units Together
For multiple door applications, the prox.pad plus can be networked together. When network-
ing prox.pad plus devices together on an RS-485 system, the prox.pad plus units are all wired
in parallel. This networking capability is available when connecting directly to your personal
computer’s COM port or when communicating over a computer network with the IEI Gateway.
The illustration below is an example of networking multiple units together.
Device #1
Device #2
Door #1
Door #2
NOTE: The maximum
number of devices on a
single network is 32.
RS-232 to RS-485
Converter or IEI
Gateway
2-White (Data A)
3-Brown (Data B)
4-Blue (Data GND)
P5
P1
P3
P2
P1
P3
P2
P5
P4
P4
Figure 13 Networking Multiple prox.pad plus Units Together
Prox.pad plus Access System Installer Guide
Part No. 6045679, Rev. 1.0, D5 17