O P E R A T I N G M A N U A L
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7
Stadium Wiring Considerations
Twisted Copper with RJ-14 Connector
We recommend an uninterrupted run of Cat 3 UTP cable from sideline to press box (for both home and visitor). By definition,
each RJ-14 connector has two pairs (i.e., four wires). It is often confused with an RJ-11 (two wires). Some phone technicians
will call these RJ-11 4-wire jacks.
Specifications:
Max Distance
≤ 3000 ft. (914.4 m)
Connector Type
RJ-14
Wire Type
Cat 3 UTP (unshielded twisted pair) copper phone line (At least 12 pairs required, though we
recommend 24 pairs in order to have a full backup set.) Each RJ-14 connection consists of 2
pairs wired.
Wire Size
22 to 24 AWG
Please note the unique wiring of the RJ-14 for the “NG” application in Figure 3.
Fiber-Optic Cable
Requirements for use with X-System Wireless Press Box Unit
For stadium wiring, CoachComm recommends an uninterrupted run of at least eight strands of
single-mode optical fiber (SMF) cable from sideline to press box (for both home and visitor). We
require at least four strands for X-System operation, so strands beyond those would be spares.
The X-System
™
Sideline Cart, ATA package, and Wireless Press Box systems contain Neutrik
OpticalCon Duo panel connectors and cables. (Neutrik OpticalCon Duo Connectors are
ruggedized pass-through connectors compatible with standard LC duplex terminated fiber
cable.) For ease-of-use, CoachComm recommends using Neutrik OpticalCon Duo Chassis
Connectors for field and press box stadium termination.
Specifications:
Max Distance
≤ 10 km (6.2 miles)
Fiber Type
9/125 µm Single-Mode Fiber (SMF) strands (At least 4 strands
required, though we recommend 8 strands in order to have a full
backup set.) Each LC duplex connection consists of 1 pair (i.e., 2
strands).
Connector Type
LC duplex pair into Neutrik OpticalCon Duo (Part # NO2-4FDW-A)
Stadium Termination At least 2 separate Neutrik OpticalCon Duo Chassis Connectors in
each location—press box and sideline.
Line 1
Line 2
Figure 3: RJ-14 Wiring
CoachComm System
(RJ-14 Connections)
Stadium Wiring
(RJ-14 Connections)
Lines 1/2
Pairs 1 and 2
Lines 3/4
Pairs 3 and 4
Lines 5/6
Pairs 5 and 6
Lines 7/8
Pairs 7 and 8
Ground 1/Ground 2
Pairs 9 and 10
Ringdown 1/Ringdown 2
Pairs 11 and 12
Figure 4: Figure 2: Single-Mode Fiber (2 Strands)
and Duplex LC Termination
Figure 5: Figure 3: Neutrik opticalCON DUO
Cable Connector
Figure 6: Figure 4: Neutrik opticalCON DUO
Chassis Connector
