Page 3-25
Installation
INTER-TEL
®
AXXESS
®
MANUAL VERSION 11.0 – May 2008
CO Trunks in a European system
INSTALLATION
3
3. If necessary, using standard electrical tape, tape two ferrite split beads (part no.
808.1195) around each 25-pair cable just below the amphenol-type connector (as shown
in Figure 3-8 on page 3-26).
NOTE: Ferrite beads may be necessary to help reduce EMI and RFI.
4.
Terminate the other end of each 25-pair cable on the left side of the corresponding
LGC/LSC block.
5. Install bridging clips to complete the connections.
CO Trunks in a European system
7.5 Some trunks are connected via the fallback system. See page 3-73 and Figures 3-36 and
3-37.
7.6 The trunk connections are made to the designated Krone blocks. See Figure 3-11 on
page 3-29 and Figure 3-8 on page 3-62.
NOTE: For additional lightning protection, see page 3-26.
7.7 Attach the two ferrite split beads supplied around each cable just below the amphenol
type connector (as shown in Figure 3-8).
DID Trunks (U.S. Only)
7.8 Connect the Direct Inward Dialing (DID) trunks to the Single-Line Adapters as outlined
below. See Figure 3-12 on page 3-30 for a diagram.
NOTE: DID trunks are also supported through T1 circuits. In addition to DID trunks, SLAs can
also be used to install single-line sets, playback devices, and off-premises stations. Any combi-
nation using the two ports on the SLA is possible. See pages 3-44 to 3-69 for station installation
instructions.
1. Mount one four-conductor modular jack assembly next to each telephone company RJ
jack.
2. For each modular jack assembly mounted in step 1, mount a corresponding four-con-
ductor modular jack assembly near the SLA location.
3. To connect the modular jack assemblies mounted in steps 1 and 2:
a. Run one-pair cable between the corresponding modular jack assemblies.
b. Wire each end of the one-pair cables onto their respective modular jack assem-
blies. See Figure 3-12 on page 3-30 for a diagram of the wiring.
4. Plug one end of a two-pair, mod-to-mod line cord into each RJ jack and plug the other
end into the corresponding modular jack assembly beside it.
5. At the MDF backboard, plug one end of a two-pair mod-to-mod line cord into each
modular jack assembly. The other end is later plugged into the corresponding DID jack
on the SLA.
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