Aastra NeXspan C - Connecting the LDT Board

Page 108 01/2007 AMT/PTD/PBX/0020/2/4/EN
5.3.6 Connecting the LDT board
The LDT card is connected to the distribution frame by a special cable, also used for the remote
power supply connection and the RSU connection if a T0 interface is synchronising on the LDT
card.
If there is no synchronising T0 on the LDT card, cable HG4301A or B is used.
The remote power supply connection requires a PLDS card used to retrieve the 40 V ISDN or the
48 V Subscriber on the back panel. The PLDS is positioned as an equipment card cable
(LAJ,LAB etc.). It is inserted in a slot between the equipment cable and the back panel
connector.
Figure 5-11: connecting the LDT board
PLDS
A
Carte
équipement
B
F . D . P
J3
P40 M40
M48P48
FUS DE SECOURS
MATRACOM CARTE PLDS
J2 J1
A
LDS
B
F . D . P
Connecteur 21 points
vers horloge DECT TTL
Connecteur 21 points
vers USB (H.2.048 Mhz)
Câble HG4302X
J1
J4
J3
J2