Serial Port
The serial port provides a standard 9-pin connector that allows you to use the pen tablet with an external
serial device. Pin assignments for the serial port connector are shown in Table 6-2.
Connector Pin Locations
DC Power Input
The DC power input connector connects to the AC adapter or auto adapter to power the pen tablet. The
DC power input connector is a two-conductor connector with a center pin and sleeve. Pin assignments for
this connector are given in Table 6-3.
Conductor
Center Pin
Sleeve
When a DC power source is connected to the DC power input on the pen tablet, circuitry built into the
pen tablet provides protection against reverse polarity and overvoltage.
Table 6-2. Serial Port Connector Pin Assignments
Pin
1
2
3
4
5
6
7
8
9
Table 6-3. DC Power Input Connector Pin Assignments
Description
16 Volts DC ±10%, 3.36 A
Ground
Signal Name
CD
RD (RxD)
SD (TxD)
ER (DTR)
SG (GND)
DR (DSR)
RS (RTS)
CS (CTS)
CI (RI)
Comments
(Hosiden part number
HEC3900-01-010)
This connector is a
EIAJ-RC5320A standard
connector. See "DC Power Input
Connector Pin Assignments" on
page 48 for more details.
Host
I/O
-----
Serial Port
6
6
48