Logitek Electronic Systems JetStream Audio Networking Platform - Manual (Page 11)

3 Physical Installation
This chapter covers basic installation and cabling information, and details some cabling examples.
As preferences and techniques for installation vary widely, this information should primarily be used
as a starting point for planning your install.
Installation
The JetStream MINI is designed to be mounted in a standard 19” rack, and occupies two rack units.
The main power supply is mounted internally. A redundant 12 volt, 40 watt DC power supply,
PSU-40W connects to the rear of the unit.
The JetStream should be mounted in a clean, dry and well-ventilated area. Because the unit is
convection cooled and there is no cooling fan, leave at least one rack unit empty above and
preferably one empty rack unit below the JetStream for best performance,
Cabling
All cables to the JetStream enter at the rear of the cabinet.
Audio Cable
Be sure to use properly rated digital cable for digital audio connections. For twisted pair, this is
normally 110 ohm low capacitance cable such as Belden 1800A or Gepco 5524EZ.
These cable types are also excellent for analog audio so using digital cable for all audio connections
would be an acceptable and wise choice, negating the need to order separate types of cable.
For a neater installation, a multi-pair cable may be preferred. CAT5 cable is a popular alternative,
due to its high availability and low cost. The impedance range of CAT5 cable fits entirely within the
range allowed by the AES/EBU specification. The tightly matched wire resistance also makes CAT5
an excellent analog cable.
For installations where an intense AM RF field is present, shielded CAT5 cable may also be used.
JetStream I/O cards with RJ-45 connectors utilize the StudioHub+ wiring standard made popular by
Radio Systems. Using a variety of dongles that connect to standard CAT5 network cable, installing a
JetStream is as simple as plugging the cable into the I/O card, plugging the matching dongle into the
other end, and connecting the studio equipment.
The StudioHub+ wiring standard calls for shielded CAT5 cable, and all Logitek StudioHub+ wiring
kits come with a short length of pre-made shielded CAT5 cable for each input and output. Non-
shielded CAT5 cable can work for most analog and digital connections. However, shielded CAT5
cable must be used with the JSM-MIC-RJ card without exception.
Logitek JetStream MINI Reference Manual 11