5
Safety notes ¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢
Pay attention to the safety notes
- before installing or removing a module,
- before connecting or disconnecting a
connecting lead
1. Remove the telephone system's 230 V
mains plug from the socket.
2. Remove the Western plugs of all exter-
nal ISDN basic accesses from the
telephone system, the network termi-
nator (NT) or the S0 bus.
3. Touch the metal shield of the PC/
printer socket on the bottom of the tel-
ephone system briefly with your finger.
This will discharge any possible electro-
static charges, thus protecting the tel-
ephone system’s electrostatically sensi-
tive components.
Installing a module
- Insert the module vertically, with the large
connector strip pointing upwards, into the
top hand bottom guide slits of one slot.
Slot X=0 (outside right) must be used
for the connection module. The con-
nection module must not be plugged
into any other slot as otherwise a con-
nector will be destroyed.
You can choose slots X=1 to 4 freely for
all further modules.
- Carefully push the module down until the
connectors engage and the latching lug
of the module latches into the lock.
- Pull the adhesive label showing the mod-
ule’s connections off the information
sheet (included with the module packag-
ing).
Installing and replacing modules ¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢
- Stick the adhesive label over the module’s
slot on the housing.
Replacing a module
- Undo the module’s connecting leads.
Mark the connecting leads clearly to avoid
confusion on reconnection.
- Move the module extractor (bolt) carefully
along next to the module and approxima-
tely in the center of the module towards
the back. Turn the module extractor so
that the hook hooks underneath the
module.
- Press the lock upwards until the module’s
latching lug is free. Carefully pull the
module out towards you using the mod-
ule extractor.
Marking connecting leads ¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢
Mark connecting leads clearly to avoid con-
fusion when expanding the telephone sys-
tem or when reconnecting leads. Use the
included marking system to mark the con-
necting leads. It consists of:
- Plastic comb element with 20 strips for in-
scription
- 20 transparent sleeves for securing
- Mark the strips with a pencil or a fibre
tip pen.
- Break the trips off the comb element.
- Insert the strips in the small chambers of
the sleeves.
- Slide the sleeves with the large chambers
onto the ends of leads.
