BVRD Series Microphones
Installation Instructions
6
BVRD Series Microphones issue 5
2.2 C
ABLE
I
DENTIFICATION
The colour codes of the RJ45 conductors are as follows:
2.2.1 Colour Code for Processor Bypass switch
The colour code for units with a Bypass switch fitted are as shown
above, the Bypass Access using Pin 7 (Brown / White).
2.3 R
ECOMMENDED
C
ABLE
T
YPES
The BVRD Series Microphones should be terminated to 2 x 4
core Fire Rated cable (MICC/ FP200 or similar).
It is strongly recommended that separate cables be used for the
audio pair to eliminate potential interference from the RS485
data.
Figure 2.2 — Suggested Cable Connections
* The Processor Bypass is only used on BVRD Microphones fitted
with a “Processor Bypass All Call” button.
Function Pin #
Cable Colour
+V DC
1
Orange / White
0V
2 & 8
Orange & Brown
Data "A"
3
Green / White
Audio
4
Blue
Audio
5
Blue / White
Data "B"
6
Green
Bypass
7
Brown / White (Not used by default)
C
AUTION
Do not connect Pin 7 (Brown / White) to +24V.
Summary of Contents for BVRD series
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