1 - 4
Opening the housing ¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢
Press with a screwdriver onto the tabs in the
slits on the connection side of the housing.
The cover is released and you can detach it.
Caution: mortal danger !
Before removing the inner cover, pull out
the 230 V mains plug to switch off the
telephone system. The inner cover may
only be removed by a service technician.
Achtung!
Vor dem Öffnen Netzstecker ziehen.
Caution!
Disconnect power cord, before remove
M
M
Cover latching
Cover
Cover latching
M
Swiches
S400 and S401
RS 232C -
Schnittstelle
b7
a7
b8
a8
NF
U~
TFE
S0-Anschluß
extern
BE
X16
externe
MoH
X15
X2
X3
X4
X5
X8
R42
R41
R32
R31
Relais 1 bis 4
R22
R21
R12
R11
b5
a5
b6
a6
X6
Port 5
X7
X11
b2
a2
X10
b3
a3
db3
da3
X9
b4
a4
db4
da4
db2
da2
+24 V
X14
a2
b2
a1
b1
S0-Anschluß
intern
GND
GND
Port 1
X12
da1
db1
a1
b1
Port 2
Port 3
Port 4
Port 6
Port 7
Port 8
Mains connection
M: mounting
holes
(termination)
Connection board
Securing web
Drawing 1: Open central housing of the telephone system
