Synchronous Bus Interfaces; Isdn Clock Interface; Remote Power Supply Interface; S Interfaces - Matra Nortel MC 6500 Manual

SYNCHRONOUS BUS INTERFACES

5.6.1
Each group of eight S accesses requires a connection to a full junction (32 TS) of the
MC 6500 PBX synchronous bus.
Two junctions are therefore required for one 16 S LDS card.
5.6.2

ISDN CLOCK INTERFACE

In the MC 6540 PBX, the clock signal extracted from the ISDN has a synchronizing function
for the MC 6540 PBX and is set up through the back panel and configuration of the CFH
daughter card.
5.6.3

REMOTE POWER SUPPLY INTERFACE

Remote power must be supplied to the LDS card via a cable. As the LDS card must be
placed in a CLX type slot, no 48 V or 40 V voltage is available. The remote power supply is
selected for all sixteen accesses.
On the LDS card, each set of four accesses has a current limiting device which limits the
current to 400 mA.
♦
Accesses are grouped as follows:
Jumpers must be set to provide a remote power supply for each access.
The remote power supply for each access is configured by the position of jumpers SWi_P*
and SWi_M*.
(See the descriptions of the configuration switches and jumpers in section 5.4.)
*
i: Value from 0 to 15
_P:
_M:
5.6.4

S INTERFACES

On each access, CA1_i switches (where i is a value ranging between 0 and 15) are used to
disconnect the 100 ohm bus adaptation resistors.
When set to the ON position (screen printed on the LDS card), the resistors are connected
and the remote power supply selection jumpers that are set to the ON position, connect the
remote power supply (SWi_P and Swi_M). The ON position is mandatory for base stations.
(See the descriptions of the configuration switches and jumpers in section 5.4.)
LCAH-30521-001-05=01/EN
This confidential document is the property of MATRA NORTEL COMMUNICATIONS and may not be copied or circulated without permission.
Ce document confidentiel est la propriété de MATRA NORTEL COMMUNICATIONSet ne doit pas être reproduit ou communiqué sans autorisation.
40 V or 48 V
if switch present, between 1-2
- Access 0 to 3
- Access 4 to 7
- Access 8 to 11
- Access 12 to 15
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