RS485 buffer chips
RS232 buffer chip
-RS485 IN
+RS485 IN
- RS485 OUT
+RS485 OUT
Ground
RS232 IN
RS232 OUT
Ground
RS232 IN
RS232 OUT
Ground
PORT 2 (always RS232)
PORT 1
RS485 mode
PORT 1
RS232 mode
Connector to
Processorboard
Mains input
Power for
external
devices
2
2
0
V
A
C
E
a
rt
h
2
2
0
V
A
C
5
V
9
V
u
n
re
g
.
G
N
D
(
0
V
)
±
In
p
u
t
fo
r
D
C
F
G
e
n
e
ra
l
in
p
u
t
3
E
x
te
rn
a
l
b
a
rc
o
d
e
r
e
a
d
e
r
in
p
u
t
0
V
C
lo
c
k
D
a
ta
0
V
C
lo
c
k
D
a
ta
Fuse 250mA
Relais 1
Relais 2
Power On/Off Switch
Switch input 1
Switch input 2
+5V for inputs
Relais 3 driver
Relais 1
Relais 2
Communication
connections
Extra connections
1
2
3
4
5
6
7
8
Switch 1,2,3,4 RS232
Switch 5 Ethernet interface
Switch 6,7,8 RS485
With this DIP switch you can select the
communication method for port 1:
For RS232
For RS485
For Ethernet
1,2,3,4 ON
6,7,8 ON
5 ON
5,6,7,8 OFF
1,2,3,4,5 OFF
1,2,3,4,6,7,8 OFF
For RS232
For RS485
For Ethernet
1,2,3,4 ON
5 ON
5,6,7,8 OFF
6,7,8 ON
1,2,3,4,5 OFF
1,2,3,4,6,7,8 OFF
External connection for proximity reader 2
Must allways be connected to a doorlock
interface.
External connection for proximity reader 3
If jumper 1,2 and 3 are closed you can connected
a proximity reader directly to the PROX3 input
without a doorlock interface.
8V battery
Overview TIMEmate IIIB powersupply board
