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ENT
ARM
EverAccess
0
CLR
WXYZT U VPQRS
M N OJ K LG H I
3
D E FA B C
21
4
56
987
SYS SYS
789
65
4
12
A B C D E F
3
G H I J K L M N O
PQ RS T U V W XYZ
CLR
0
SYS
789
65
4
12
A B C D E F
3
G H I J K L M N O
PQRS T U V WX YZ
CLR
0
ENT
ARM
EverAccess EverAccess
ARM
ENT
Figure 3.6 The Daisy Chain Connection Controller to Controller
Two common INCORRECT connection methods are displayed in Fig.3.7 as well.
EverAccess
SYS
789
654
12
A B C D E F
3
G H I J K L M N O
PQRS T U V WXYZ
CLR
0
ARM
ENTENT
ARM
EverAccess
ENT
ARM
EverAccess
SYS
789
654
12
A B C D E F
3
G H I J K L M N O
PQ RS T U V WXYZ
CLR
00
CLR
WXYZT U VPQRS
M N OJ K LG H I
3
D E FA B C
21
456
987
SYS
0
CLR
WXYZT U VPQRS
M N OJ K LG H I
3
D E FA B C
21
4
56
987
SYS
SYS
7
89
654
12
A B C D E F
3
G H IJ K LM N O
PQRS T U V WXYZ
CLR
0
ENT
ARM
EverAccessEverAccess
ARM
ENT
EverAccess
ARM
ENT
EverAccess
ENT
ARM
0
CLR
WXYZT U VPQ RS
M N OJ K LG H I
3
D E FA B C
21
456
98
7
SYS
SYS
789
65
4
1
2
A B C D E F
3
G H I J K L M N O
PQRS
T U V WXYZ
CLR
0
Figure 3.7 Two INCORRECT Connections
Connection to Multiple Controllers via RS485
Up to 127 controllers can be connected to each desktop reader via RS485 bus. The
correct RS485 connection method has been briefly introduced in the section entitled
“RS485 Bus Extension”. Here are the details to connect multiple controllers via
RS485, shown as Fig. 3.8. The terminal 10, 11 and 12 on the main module should be
connected to the upper level controller’s terminal 10, 11 and 12.