1)
Drill a 58mm (2.25”) hole through the
table see fig A.
2)
Remove the nut and fit the CRM 203-RF
through the 58mm (2.25”) hole see fig B.
3)
Replace nut and tighten to the under-
side of the table see fig C.
4)
Connections for each mic a + b + c will
be identified as follows: mic a (in line
with screws) uses white cable, mic b + c
have black sleeves and are positioned
90° from mic a: Red Phase +, White
Phase – and screen Ground.
5)
Using p-clamps provided fix cables to
the underside of the table ensuring
there is sufficient slack in the cable loom for the mic
to operate. See fig D.
Grey 2 core (red and blue wires) is to be used for remote
switching, screen is not used. Also note switch is open
circuit when the mic is down.
Please take note program-
ming will be needed on the DSP side to allow the micro-
phone to be muted once retracted.
The CRM 203-RF is a tri-element boundary layer through table condenser microphone, with a built-in mechanism that will
allow the user to make the microphone disappear without having to physically remove it from the table. This is achieved by
simply pressing the top of the microphone downwards until it locks; then by pressing the microphone again it will raise itself
back to its original position above the surface of the table. Engineered in high quality brass with built in shock mount and RF
filter.
Installation Guide
®
Mic B + C
Black Cables
CRM 203 RF
Securing Nut
Offering 3 independently wired mics a + b + c
Fitted with a magnetic reed switch designed to prevent unwanted feedback from
retracted microphones on power up. The switch contact is closed (ON) when the
microphones are in the raised position and open (OFF) when retracted.
This is not
designed to be used for privacy muting.
Easy to install
Low profile at surface level
Unique ability to lock capsules away from sight when not in use
Robust brass construction
Cardioid polar pattern
Built in RF filter
Balanced output
Supplied with 3 x 2m (6.6ft) 2 core + screen audio cable and 1 x grey 2 core cable
for internal reed switch
Satin Nickel (CRM 203N-RF) or Black Nextel (CRM 203-RF) finish
Fig D
Mic A White cable
