Electrical ratings:
Input voltage 5V, 24V
Input current 80mA at 5V
130mA at 24V
Battery Current 150mA at 24 VDC
The RCM-1 Riser Control module
provides control and supervision of
global paging risers in MXL voice
networks. The RCM-1 is a double-
width card and has 4 ports with the
following inputs and outputs:
RCM-1 Connections and Ratings
The RCM-1 supervises Port B for open
and short circuits, reports by exception
to the MXL, and isolates the fault.
Only one RCM-1 may be connected to
the MXL. The module communicates
with the MXL using the RS-485 MNET.
If the RCM-1 detects that supervision
is lost with the MXL, it will automati-
cally switch to Local Mode.
If any copper wire pair leaves the
building (Campus Configuration) the
LLM-1 module must be used for
transient protection (UL 1459). Refer
to the LLM-1 Installation Instructions,
P/N 315-093530.
Modes of Operation
The RCM-1 can operate in the follow-
ing modes:
Local Mode - The audio from the
local MXL (ACM) will be switched
to local speaker zones (OCCs). The
global audio riser will be switched
to Port C, the Style 4 output riser.
Global Mode 1 - The audio output
from the local MXL is disconnected.
The audio from the global riser is
connected to the local speaker
zones and to Port C, the Style 4
output riser.
Global Mode 2 - The audio from
the local system is connected to
both the local speaker outputs and
the global risers.
PORT STYLE FUNCTION
A 6 Audio signal input
B 4/7 Audio signal input/output
C 4 Audio signal output
D 6 Audio signal output
RCM-1 Ports
4 - 89
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