Bachmann TW-100D Technical Documentation Manual - Eex-I
TW-100D, TW-100DB, TW-100Dm, TW-100DBm, TW-115B
- Technical Documentation
25.9.2007 © E.L.B. Ex-Geräte Bachmann GmbH Page 14
PS/2 scanner and keyboard are switched in parallel here over the internal connection
between PS/2 and screw terminal, which only works with AT- or XT-keyboards and
the BIOS set to "stand alone keyboard". Modern keyboards will look at data from the
scanner as PC instructions and "answer unasked".
A keyboard wedge type KS-20 inside of an EEx-d enclosure
makes a simultaneous use of scanner and keyboard possible.
KS-20 is not suitable for mice.
PS/2
ELB
EX-GERÄTE
Interface
Type TW-100D or TW-100DB
II (2) GD [EEx ia] IIC T4
TÜV 00 ATEX 1584
-30°C
≤ T
a
≤ +60°C
Additional information see certificate
Mouse
Ke
y
boa
rd
Mouse
Ke
y
boa
rd
Mouse
Keyboard
EEx-i
ELB
EX-GERÄTE
Interface
Type TW-100D or TW-100DB
II (2) GD [EEx ia] IIC T4
TÜV 00 ATEX 1584
-30°C
≤ T
a
≤ +60°C
Additional information see certificate
Mouse
Ke
y
boa
rd
Mouse
Ke
y
boa
rd
Mouse
Keyboard
EEx-i
PS/2
KS-20