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24
5
3
2
RXD
GND
PC DB9
Serial
Port
12
13
14
Blue
Yellow
Red
TXD
Fig. 3.2 Connection to Computer via RS232
Connection to Desktop Reader via RS485
To connect the EverAccess Flex Series controller to the desktop reader via RS485
bus, terminal 10, 11 and 12 on the main module should be wired to the line 1, 2 and 3
in RJ45 head, as Fig 3.3 shows. The RJ45 head is provided with the EverAccess
desktop reader.
BA
GND
POWE R CA RD
TX RX
EverAccess
8
1
1
2
3
12
11
10
Fig. 3.3 Connection to Desktop Reader via RS485
RS485 Bus Based Networking System
Multiple EverAccess controllers can be connected to accommodate larger access
control systems. The controllers are connected via RS485, as shown in Fig. 3.4. The
desktop reader (Part#: ERS-871) is a critical component of an RS485 bus based
Main module