Radio Systems, Inc.
•
601 Heron Drive
•
Logan Twp., New Jersey 08085
(856) 467-8000
•
Fax (856) 467-3044
•
www.studiohub.com
For Assy:
TIE24-4DC
TIE12-4DC
Rev: 01/05
St Model Tie-24-4DC & Model Tie-12-4DC
Engineered for Inter-Studio Tie Lines
General
Tie Hubs provide multi-pair inter-studio connectivity by
splaying out CAT-5 25 pair cable to individual RJ-45
connectors via a 50 pin RJ-21 mass connector. Depending on
the model selected, either 2 or 4 CAT-5 pairs are connected
to each RJ-45 connector. Double the density is achieved if
only 2 pairs (4 wires) are required to connect to each RJ-45.
Generally, 2 pair is sufficient to support StudioHub analog
and digital audio circuits. All 4 pairs (8 wires) are needed to
support KVM and other special multi-wire equipment circuits.
DC Power
DC Tie-Line hub models allow St DC-Link +/-
15 volt power to be added on the far-side of the link to power
local St powered peripherals (such as headphone
amps and MatchJacks). An external St DC power
supply must be utilized. Jumpers and re-settable fuses for each
RJ-45 channel allow the DC power to be added. The power
option is only available on 2-pair per RJ-45 Hub models.
Grounding Information
RJ-45 connector shields may be optionally connected to the
chassis ground by inserting a jumper. A jumper is also
provided to allow the unused CAT-5 25
th
pair to be
connected to this common shield bus. In addition, on
powered models, the power supply shield may be jumper
connected to the RJ-45 shields.
Name
TIE24-4Powered
Mount
Full Hub/Half Hub
Channels
24/12
CAT-5 Pairs
2 (pins - 1,2,3,6)
Power Link
yes
Connectors
RJ-21/ 2 RJ-45
Versions
Full Hub/Half Hub/Board Only
Product Key
Two RJ-45 s in parallel to
bridge inputs and outputs
Note:
All 3 of these
jumpers must be inserted
for any channel that is
powering a remote
DC-Link device (e.g.
St Matchjack
or Pre-Amp)
Install both DC jumpers
to activate St
DC-Link connection to
p/-15V DC to
any powered accessory
Insert jumper to tie
power supply shield to
hub chassis ground
8
7
6
5
4
3
2
1
Shield
RJ- 45
Hub
Chassis
Ground
JU38
8
7
6
5
4
3
2
1
RJ-45
J2
J3
JU3
15v-
15v+
Power
Supply
Ground
JU28
Unused
Pair (25)
JU1
R1
JU2
1/2 Amp
auto-reset
fuse
1/2 Amp
auto-reset
fuse
R2
JU39
JU40
Power Supply
Shield
x 24
or 12
RJ-21
Shield
J4
Model TIE24-4DC shown
also available as
Ω
hub 12 channel - model TIE12-4DC
RJ-21 connects 25-pair
CAT-5 cable carrying six
4-pair circuits
Insert jumper to tie
power supply shield to
hub chassis ground
LED s indicate presence
of +/- 15V DC
+/-15V external power
supply main and loop-
thru jumpers
Insert jumper to
connect the common
shield bus to power
supply ground
This jumper connects the
channel to the common
power ground bus when
installed. Required for
DC-Link operation.
Note: This jumper must
be removed for KVM
extender links and other
data devices that use
CAT-5 wire #4 (blu/wht)
Insert jumper to connect
the common shield bus
to chassis ground
bm
