15
3.8.2 J8 Printer Connector
J8 is a 26 pins connector for pa ra llel port. Use a 26 pin IDC fla t ca ble to
convert interna l port to a sta nda rd 25 pin externa l D-Sub connector.
JP8
1
1
J
P
3
J
P
4
J
P
5
P
R
I
N
T
P
R
I
N
T
1
14
13 26
Following selection is a ll controled by the BIOS:
ECP Mode DMA Channel Select by BIOS
printer Port Address and IRQ Select by BIOS
(378h/3BC with IRQ7, 278h with IRQ5.)
Printer and IEEE 1284 cable
The IEEE 1284 compliant cables have better features on the
following:
Twisted pa irs of conductors
Full foil shield
Wire bra id
Controlled impeda nce -- 62 ohm
Limited cross-wa lk
With these fea tures will gua ra ntee the IEEE 1284 ca ble perform a t
much higher ba ndwidth ra tes tha t the fa st Centronics, EPP a nd ECP
modes perform a t.
If you a re using the ordina ry pa ra llel ca bles running a t the EPP or ECP
mode tha t this controller provided, you ma y experience tha t the da ta
efforts.
3.8.3 J9/J10 Serial Port & IRQ Select
J9/J10 a re 10 pins interna l Seria l 1/Seria l 2 port connector. This system
boa rd provides two fla t ca ble to convert interna l Seria l ports to a
sta nda rd 9 a nd 25 pins externa l RS-232 port.