MSD-501/502/701/702 User
’s Guide
20
5.3 Precautions
Before connecting to external devices, follow the precautions below.
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Installation
● Do not place the MSD on top of another MSD.
● Do not block vent holes. Please secure the space above ambient 30 mm/1.18 inches.
● Prepare ventilating equipment to keep the ambient temperature at 40 degrees C/104 degrees F or less. If
inadequately vented, the life of parts may be shortened and operations may be affected.
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Twisted pair cable
Connectors for a long-distance transmission are the same as eight-core modular connector that is used in
Ethernet. However, since the transmission method is not the same, it cannot be connected to Ethernet.
To ensure the best performance, select the appropriate cable and connect it correctly.
● We recommend a Cat6 UTP/STP cable for the twisted pair cable.
● If using an STP cable, connect the FG connector to an earth ground source. Otherwise, the shielding
feature does not work correctly. When using a UTP cable, we still recommend using the ground
connector.
● For 50 m/164.04 ft. or shorter transmissions, Cat5e UTP cable can be used.
● The shielded STP cables are less affected by interference or external noise than UTP cables.
● The maximum extension distance of Cat5e/Cat6 UTP/STP cable is the shorter maximum extension
distance of the connected HDC receiver and sink device.
● For pin assignments, apply T568A or T568B standards for straight through wiring.
● Do not give connection cables a strong pull. The allowable tension of the twisted pair cable is 110 N.
● Do not bend the connection cable at a sharp angle. Keep the bend radius four times of the cable diameter
or longer.
● Do not tie the cable tightly; leave a space allowing the cable to move slightly.
● If you use the same cables, we recommended keeping a distance between the cables or not to place
the cables closely in parallel.
● Keep the twisted pair cable as straight as you can. If you coil the cable, it is easily affected by noise.
● Do not place this product in an electrically noisy environment, since high-speed signal is transmitted.
Particularly when you use a high-output radio around this device, video or audio may be interrupted.
● If the distance between the transmitter and receiver is 100 m/328.08 feet or less, cables can be joined
using an RJ-45 plug coupler or wall outlet. Up to two cable couplers are allowed. Couplers supporting
Cat6A (10GBase-T) are recommended.
Note:
If there is a problem in the transmission path, video or audio may be interrupted. Please check the
items above. If the problem still cannot be solved, shorten the length of the twisted pair cable.
