GeBe GPT -4352, Operating Manual, Page: 9 / 24

Ge BE E + F Gm bH • ww w .oe m- pri nte r .co m • Ge BE Do k.N r .: SM AN -E- 413 -V3 .0 Eas y-L oad ing The rm al Pri nte r GPT -43 52
In te rf ac es • Pa ra lle l In te rf ac e 9
7.2 Parallel Interface
N a m e M e a n i n g C o m m e n t
BR1 or
J3
BR2 or
J3
Fee dba ck of the AUT O_L F out put of the hos t on SE-
LEC T: Allo ws a Win dow s sys tem to rep ort prin ter -
SEL ECT bac k to itse lf.
SEL ECT inte rrup t BR1 : def ault : ope n
J3 : def ault : 2-3 ope n, aut o LF not fed
bac k to Sele ct.
BR2 : def ault : ope n
J3 : def ault : 1-2 clos ed, sele ct act ive
7.2.1 Centr onics Adapter with SUB-D 25 pin Connector
The cable GKA-407 connects the adapter with the printer (at J5).
The cable GKA-302 pr oduces a 1:1 connection of the adapter and the parallel port of a PC.
7.2.2 PIN-seizur e at the SUB-D 25 of the adapter
Pin Sig nal Inp ut/O utp ut Com me nts
1
2
Stro be/
DB 0
I
I
Acc epti ng data DB0 ..7 with risin g edg e
3
4
5
6
DB 1
DB 2
I
I
DB 3
DB 4
I
I
7
8
9
10
DB 5
DB 6
I
I
DB 7
/Ac kno wle dge
I
O
11
12
13
14
BU SY
Pap er End
O
O
Sel ect
Aut o Line Fee d
O
I
Bec ome s high with the falli ng edg e of /Str obe
See erro r mes sag es
See erro r mes sag es
Can be con nec ted with sele ct (Win dow s ope ratio n)
15
16
17
18- 25
/Fa ult
/Inp ut-P rime
O
I
Sel ect in
GND digi tal
I
See erro r mes sag es
use d for initia ting Res et
use d for initi atin g the wak e up seq uen ce
7.2.3 Timing of the Parallel Interface
T i m e
N a m e
m i n ( µ s ) t y p ( µ s ) m a x ( µ s ) C o m m e n t s
Tac k
T
ba
Ack n.pu lse wid th
Dela y bus y ack n.
17
5,5
T
bs
T
dsu
T
hold
T
sb
Bus y Set up
Dat a Set up
0,5
0,5
Dat a hold
dela y Stro be-B usy
0,5
0,5
Tim e befo re the nex t stro be
With ope n-co llect or trigg erin g, the min imu m time is 3.5 µs. This valu e can
be cha nge d by inte grat ingd iffer ent RC filte rs.
T
strb
Stro be puls e wid th
0,5
B u s y
D a t e n
S t r o b e /
A c k n /
T s t r b
T h o l d
T s b
T a c k
P a r a l l e l e S c h n i t t s t e l l e
T b a
T d s u
T b s
Adapter GCT -4382-1 0 with
Centronics Interfac e