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Page 14 - Base Station Installation
Page 14
Compact DECT - Installation Manual
Mounting the Base Station
38DHB0002UKFH – Issue 5 (27th October 2003)
7. Replace the PCB and secure with the securing screw.
8. Remove minimum of 5cm outer sheath from cable. Connect the twisted
pairs (see below) to the fast connector block as follows:
– Strip 5mm from the ends of the eight (max.) twisted pairs.
– Starting at channel 1, socket 'a'; push the 0.5mm screwdriver into
hole 1 to release the internal spring on the fast connector and
simultaneously insert the stripped end of the a-side of the first pair
into hole 3. Release the screwdriver and test connection by gently
tugging on wire.
–
Repeat for with the b-side wire of the first pair; e.g. channel 1, socket
'b' using hole 3.
–
Repeat for the next seven twisted pairs.
PCB securing screw
PSU and PC connector sockets
Fast retaining block
for twisted pairs
1 2 3 4 5 6 7 8
a b a b a b a b a b a b a b a b
Hole 1
Hole 2
Hole 3
Bootstrap pins
Bootstrap shorting
strap in normal
position
Ring and trip channels
Not Used
9. Feed the surplus twisted pair cable back out of the CDBS housing.
10 Ensure that the bootstrap shorting strap is in the 'normal' position and clip
the front cover back on.
11. Connect the other ends of the twisted pair cables to the Coms. Platform
analogue ports.
12. Connect the CDBS to the PC, either directly or via a modem.
See page 44 for cable details.
13. Push the PSU modular plug into it's socket on the CDBS and connect the
plug top PSU to the mains power supply.
14. The lamp in centre of the front of the CDBS will light green.
Other lamp statuses are:
- Red followed by green = flash programming mode or fault
- Fast blinking red = empty system with master handset subscription not
allowed
- Fast blinking green = empty system with master handset subscription
allowed
- Slow blinking red = in operation with maximum active connections
(busy)
- Slow blinking green = in operation with active connections (busy).
Power Fail Circuits
Compact DECT DAB channels are not approved for direct connection to the
PSTN (this is not due to any technical restrictions). As a result, DAB
channels must not be connected to analogue PBX extensions which connect
directly to analogue trunks during PBX power failures.