HTRM440 데이터 시트보기 (PDF) - Philips Electronics
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HTRM440 Datasheet PDF : 16 Pages
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Philips Semiconductors
HITAG proximity reader module
hardware
interface
connector
power supply
connector
1
2
3
4
5
6
7
8
9
10
3 places
for tuning
capacitors
11
12
13
MGW271
Product specification
HTRM440 family
6.2 Antenna tuning connections
Three spare places for antenna tuning capacitors are
available on the PCB (see Fig.2).
6.3 Interface connector
INTERFACE TYPE
PIN
RS232
RS485
RS422
1
n.c.
n.c.
n.c.
2
RxD
A−
A−
3
TxD
A+
A+
4
n.c.
n.c.
n.c.
5
ground
ground
ground
6
n.c.
n.c.
n.c.
7
i.c.
i.c.
B+
8
i.c.
i.c.
B−
9
n.c.
n.c.
n.c.
handbook, halfpage
5
1
9
6
MGW310
Fig.3 D-sub interface connector.
6.4 Power supply connector
The inner pin of the DC supply connector (see Fig.4) has
to be connected to positive voltage and the outer one has
to be connected to ground. The connection is fail save.
handbook, halfpage
ground
Fig.2 Pin and connector assignment.
supply voltage
MGU480
Fig.4 DC power supply connector.
2001 Oct 04
5
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