Aastra NeXspan 500 - Description of S;T Connectors of UCT-S, UCTS-12 and UCT-C Cards; Configuring the Remote Power Supply of S;T0 to S;T3 Accesses

AMT/PTD/PBX/0020/2/4/EN 01/2007 Page 89
4.7.4 Description of S/T connectors of UCT-S, UCTS-12 and UCT-C
cards
Table 21: Pinout of S/T connectors on UCT-S, UCTS-12 and UCT-C cards
Note:
The default pinout is set to connect T0 accesses directly (straight cable). A twisted cable or T0/
S0 adaptor is required to connect DECT base stations.
4.7.5 Configuring the remote power supply of S/T0 to S/T3 accesses
UCT-S, UCTS-12 and UCT-C cards have 4 jumpers for configuring the remote power supply of
the S/T0 to S/T3 accesses (one jumper block for each access). The jumpers are plugged into
connectors J29 and J30 on the front of the UCT-S, UCTS-12 and UCT-C cards. The 4 accesses
are arranged vertically on the card. The one at the bottom is the S/T0 access and the one at the
top the S/T3 access. Depending on the position of the jumpers, the S/T0 to S/T3 accesses will
be configured as follows:
• No remote power supply
• 48 V power supply (DECT and S sets)
• 40 V power supply (option)
Pin no. S/T3 S/T2 S/T1 S/T0
1
2
3
4
5
6
7
8
NC
NC
ED3
RD3
NRD3
NED3
NC
NC
NC
NC
ED2
RD2
NRD2
NED2
NC
NC
NC
NC
ED1
RD1
NRD1
NED1
NC
NC
NC
NC
ED0
RD0
NRD0
NED0
NC
NC
1
8