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Page 36
Version 6.0
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NovaTec
Mobile Gateway S20
4.11.2
CCU-Light Pin Assignment
The CCU Light cannot be differentiated outwardly from the CCU. Only after taking out
the CCU Light from the chassis, you will find a label at one end of the two plugs on the
rear wall, with the appropriate signature of the Modules.
The function mode and the interfaces corresponds of the CCU to those on the CCU light
only with the difference that the CCU Light does not possess BRA interfaces on board.
The place for a plug-on card, which is usually equipped with a PRA Plug-in card, is also
available on the CCU Light the present signal allocation corresponds to the CCU,
whereby the pins of Plug1 are not occupied.
4.11.3
CCU-3 Pin Assignment
The CCU-3 is an advancement of the existing CCU. The connector pinning of the CBS,
SOS and CCU-3 are identical.
With the CCU-3 newer and faster processors are used, which accelerates the boot
procedure primarily. Additionally the CCU does not possess a Centronics interface
instead in its place is an Ethernet interface, which can be operated both with 10 MBit
and with 100 Mbit. All remote support functions e.g. configuration of the system or
diagnosis are thus over the Ethernetschnittstelle and via IP possible. Furthermore the
CCU offers not one place for a plug-on cards but for two. The places for the plug-on
cards are marked on the printed circuit board with Submodul_1 and Submodul_2
The connections for the Submodul_1 are marked on the front screen with Plug 1 and for
the Submodul_2 with Plug 2 (see for this pin allocation CCU).
In the chapter for CAU is described, how the terminal resistances of the plug-on maps
can be deactivated.
Picture 12:
CCU-3 pin assignment
CCU
V24
Trunk and terminal equipment
interfaces
Row A
Row C
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
Reset button
Status display (LED)
