System Installation
System Installation
Read the following information prior to installing the Tek-CARE300III system equipment. The installer
must be familiar with the system and its installation requirements and guidelines.
1. Determine equipment locations.
2. Install housings.
3. Install system wiring.
4. Use ohmmeter to check for shorts and grounds in system wiring. NOTE: This is a critical and
necessary step for avoiding installation problems later. When checking for shorts between shields,
remember that the provided interconnection cable harnesses already have the shields connected
together internally as a preparation to their introduction to the central equipment’s ground.
5. Connect equipment to system wiring. See Troubleshooting Tip below.
6. Power up the equipment.
7. Set patient, staff and duty station addresses. Refer to Figure 7 on page 15.
8. Program the Tek-CARE system with the LS450 Config Tool.
9. Verify connections.
10. Perform full operational test of the system, including all peripheral devices.
11. Train system operators.
TROUBLESHOOTING TIP: Before the above process begins, consider this brief comment on
troubleshooting. The transition between Steps 9 and 10 is a very important one. It is during this phase of
the installation process that the system is first powered up with field wiring, patient stations and peri-
pheral devices. This is the time when most installers encounter problems with wiring and equipment.
Problems to Avoid
l Do not use wire nuts for wire connections. Wire connections must be made with compression-
type connectors, rated for stranded wire, that use a ratcheting-type tool for installation.
l Do not short shields together, as this allows for noise transference from the data lines to the audio
lines.
l Unused conductors from the plug-on wiring harnesses of various devices must be taped up to pre-
vent the ends of the cut wires from coming into contact with other points (circuit boards, back
boxes, etc.).
l Do not exceed the maximum specified cable distances. Pay extra attention during the planning
stages when running cable to areas that add “hidden” length to cable runs.
l The capacitance on the data wires is critical (<24 pF/ft.). If the cable capacitance exceeds this
level, data signal degradation can occur and interfere with normal system operation.
l Do not run system cabling in close proximity to other electrical system cables or building power
cables. These systems can induce noise, resulting in system operational problems and/or audio
noise.
6|IL1057 Tek-CARE300III Installation Manual
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TekTone Sound and Signal Mfg., Inc. All Rights Reserved
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