Page 3-43
Installation
INTER-TEL
®
AXXESS
®
MANUAL VERSION 11.0 – May 2008
Connecting Station Cables to the MDF
INSTALLATION
3
D. CONNECTING STATION CABLES TO THE MDF
With a U.S. System
7.34 Each type of station instrument is connected to a specific station card. Digital phones
are connected to Digital Keyset Cards (DKSCs) and/or 16-Port Digital Keyset Cards (DKSC-
16s). Analog phones are connected to Analog Keyset Cards (AKSCs). Executone IDS and
Wave phones are connected to Executone Keyset Cards (EKSCs). Single-line sets and play-
back devices are connected to Single-Line Cards (SLCs) or 16-Port Single-Line Cards (SLC-
16s), or they can be connected to Single-Line Adapters (SLAs) which are in turn connected to
available DKSC/DKSC-16 circuits.
NOTE: Besides single-line sets, playback devices, and off-premises extensions, SLAs can also
be used to install DID trunks. Any combination using the two circuits on the SLA is possible.
See page 3-25 for DID trunk installation instructions.
7.35 After the station cables are run, connect them and the 25-pair cables to the DKSC/
DKSC-16 blocks on the MDF as follows:
1. Ensure that both ends of each station cable are labeled with the circuit number of the
associated station instrument.
2. Terminate each station cable on the right side of the corresponding station block. See
Figure 3-20 through Figure 3-7 on the following pages for station cable terminations.
NOTE: For simplicity, the figures show station instruments being installed using one-
pair cable and four-conductor modular jacks. Of course, if three-pair cable and six-con-
ductor modular jacks are used instead, extra terminal blocks and the use of cross-con-
nect wiring techniques are required.
3. Using enough 25-pair cable to run from each block to each station card in the equip-
ment chassis, make the termination cables. Attach a 50-pin female amphenol-type con-
nector to one end of each cable. Label each connector and cable end with the
appropriate slot number (for example, SLOT-2). These connectors are attached to the
station cards after the circuit cards are installed.
4. If necessary: Using standard electrical tape, tape two ferrite split beads 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 electromagnetic interference
(EMI) and radio frequency interference (RFI). The part number for a single split bead is
808.1195.
5. Terminate the other end of each 25-pair cable on the left side of the corresponding sta-
tion block.
6. DO NOT attach bridging clips until the loop resistance tests have been performed (as
described on page 3-69).
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