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Chapter 4 - Implementation of hardware
4.1
Conventions used for card names
All expansion cards exist in two physical formats:
•
format fitted with an extraction handle and Stocko connectors. These Stocko cards have the
name of the card followed by the extension ST (example : LD4 ST, LD4NX ST).
•
format with a front panel for RJ45 connectors. These RJ cards have the name of the card
followed by the extension RJ (example : LD4 RJ, LD4NX RJ).
When a card is referred to in general, whether it is a Stocko or RJ45 card, only the name of the
card is used (LD4, LD4NX, etc.).
When a CPU card is referred to in general, whether it is a first or seconde or third generation
card, only the standard name of the card is used: UCT-S, UCTS-12 et UCT-C.
4.2
Interface cards
The cards used to connect DECT base stations to NeXspan C/S/L/D range devices are:
•
LD4/LD4NX cards, If necessary equipped with the ADPCM16 daughter card.
Note: There are two operating modes on the LD4NX card. The LD4N standard operating
•
UCT-S CPU cards (UCT2-S/UCT3-S, if necessary equipped with the ADPCM16 daughter
card) of NeXspan S.
•
UCTS-12 CPU cards (UCT2S-12/UCT3S-12, if necessary equipped with the ADPCM16
daughter card) of NeXspan S12.
•
UCT-C CPU cards (UCT2-C, if necessary equipped with the ADPCM16 daughter card) of
NeXspan C.
LD4 and LD4NX cards
The LD4 and LD4NX cards have four T0/S0 interfaces and are used to manage 2- or 4-channel
DECT base stations. The T0/S0 interfaces are configured by MMC:
•
as T0 for connection of an ISDN network basic rate interface,
•
as S0 for connection of an ISDN terminal or DECT base station.
The LD4 and LD4NX cards also allow the connection of four 2-channel DECT base stations or
four 4-channel DECT base stations if they are equipped with an ADPCM16 card.
AMT/PTD/PBX/0020/2/4/EN
mode compatible with the previous LD4 card and the LD4X operating mode obtained
by removing or plugging the jumper J14 into pins 1 and 2. The LD4X operating mode,
only compatible as of release R4.1, is used to implement additionnal functions (see §
4.5 et § 4.6).
on NeXspan C/S/L/D
01/2007
Page 67
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