User guide

RM-702 TWO-CHANNEL REMOTE STATION
2-14
• PA feed to studio output
• Remote control of talk switches
• Inadequate sidetone adjustment
INTERCOM LINE WIRING
The intercom line wiring has several purposes in the Clear-Com system:
• Connection of the audio intercom signal between stations.
• Delivery of DC power for remote stations (such as the RM-702) to
operate from.
• Termination of the intercom audio line external to remote stations.
Connect the intercom lines of stations and power supplies using a shielded
twisted pair cable with XLR 3-pin connectors (the same as used for balanced
microphones). Refer to the installation overview section of this manual for
more information.
The RM-702 has a male and female pair of XLR-3 connectors for each
intercom line. The male-female pair of connectors are wired parallel and
intended for loop-through connection.
The pinout of the intercom connectors are as follows:
Pin 1 --- Ground (shield)
Pin 2 --- Power
Pin 3 --- Audio
The following application shows the practical connection of the intercom
lines in the block diagram of the cable/school television studio.
Figure 2-12: Connecting a Small Cable/School Television Studio
The entire system is wired using male/female microphone cables
looped-through each station except for the HB-702s. The HB-702 has screw
Director
Assistant
Director
Video Graphics
To headset
To headset
To
headset
To headset
HB-702
HB-702
Floor Managers
RM-704
Beltpack
Beltpack Beltpack
Beltpack Beltpack
To
Headset
To
Headset
To
Headset
To
Headset
To
Headset
Connection Codes
03 = 3-pin “xlr”
04 = 4-pin “xlr”
15 = DB-15
B = 1/4-inch stereo phone plug (ring/tip/sleeve)
C = 1/8-inch mono phone plug (tip/sleeve)
H = Screw terminals
W = AC power cord
Male
Female
Talent
Announcer
Channel B
Channel A
Cameras
Program Input
From station SA outputs
Provided by user
Paging
Speaker
Mixer/Amp
To
Ear Piece
To
Ear Piece
PS-702
3
3
3
3
3
3
3
C
3
C
3
3
3
4
3
3
3
3
4
H
H
4
H
H
4
3
3
4
33
4
3
3
4
3
3
4
3
4
B
A
B
A
B
15
B
A
BA
A
B
RM-704