Figure 3-122 S 2M Trunk Connection - Siemens HiPath 3000 Service Manual

S trunk connection
2M
Table 2-10 lists examples of the maximum cable lengths for connecting trunks.
HiPath 3750/HiPath 3700
Cable S30267-Z57-Axxx
TMS2
6 m (not Germany), 10 m and 20 m
Figure 3-122 S
2M
Observe the following when connecting NTs using the S30267-Z57-Axxx cable:
Keep the cable from the NT to HiPath 3750 or HiPath 3700 as short as possible to ensure
●
proper operation.
HiPath 3750 and HiPath 3700 must always be grounded (whether the line used by the net-
●
work provider is copper or optical fiber) (see 1 TR 211 item 2.4, Protective Measures and
Grounding). The diameter of the earth conductor must be at least 2.5 mm
system using sheath wires is not sufficient.
For operating reasons, keep the ground connection from the NT to the system as short as
possible.
Caution
7
In order to guarantee successful operation, you must ensure that the NT is
grounded on the network provider side.
Power supply
●
The NT must be fed over the –48 V (max. 10 W, observe the power requirements of the
NTs) of the UPSM (see Figure 3-123).
The voltage is fed out on backplane connector X06 (pins 17 + 37 = –48 V). Use the CABLU
supplied to connect the system with the MDFU. This places the voltage on pair no. 15 (= –
48 V) of the splitting strip.
The delivery does not include a CABLU if the REAL board has been ordered or is already
being used (the necessary CABLU is included in the delivery of the "ALUM using REAL"
feature).
P31003-H3550-S403-4-7620, 02/05
HiPath 3000 V5.0, HiPath 5000 V5.0, Service Manual
trunk connection
Boards for HiPath 3000
Peripheral Boards
Public network
NT
2
boards.fm
. Grounding the
3-301