RFL IMUX 2000 - Page 60

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
Table 2-4. System status indicators and the ACO switch
Item
(Fig. 2-19)
Module
Module
Label
Multiplex
er
Front P
anel
Label
Description
1 Power
supply
PS - - - Power Supply Module Fail LED. Lights when power
supply module has failed.
2 Power
supply
J2 - - - 2-Position Jumper Switch J2
(3)
A = Down: Normal factory setting
B = Up: Set this position to enable Alarm when
C
o
mmon Module is removed or not engaged properly.
3 Power
supply
PWR POWER Power LED. Lights when the multiplexer is powered. If
the multiplexer is equipped with a redundant power
supply, this indicator will remain on if one of the
power supplies has failed and the remaining supply
has enough capacity to power the multiplexer by
itself.
4 Power
supply
DIS/EN - - - Alarm Cut-Off Switch (Disable/Enable). When this
switch is in the Disabled position and no alarms are
active, the alert indicator will light. When this switch
is in the Enabled position the ALERT and ALARM
relays are on line and will activate in response to
system fault conditions.
NOTE: If the multiplexer contains two power supply
modul
es, the ACO switches on both
power supply
modules must be placed in the DIS position to disable
the ALERT and FAIL relays.
5 Power
supply
NORM NORMAL Normal LED. Lights when neither an ALERT or an
ALARM condition exists.
6 Power
supply
ALERT ALERT Alert LED. Lights when one or more of the following
conditions exists:
(1)
EXCESSIVELY LOW RECEIVE SIGNAL (RX IN
indicator off)
REC YELLOW ALARM (RX IN indicator blinking)
LOOPBACK ACTIVATED (LPBK
indicator on)
FALLBACK TIMING ACTIVATED (The TIMING
ind
icator for the programmed timing mode will be
blinking)
SINGLE POWER SUPPLY FAILURE (when two
po
wer supplies are installed)
ACO ON
7 Power
supply
FAIL ALARM Fail LED. Lights when one or more of the following
conditions exists:
(2)
CPU FAILED (CPU indicator on)
SIGNAL PRESENT BUT OUT-OF-FRAME (RX IN
and FRM ind
icators on)
NO TRANSMIT OUTPUT (TX OUT indicator off)
1. An unframed "all ones" is a E1 Alarm Indication Signal (AIS).
2. This indicator also lights briefly at power-on.
3. Effective March 06
IMUX 2000E1 RFL Electr
o
nics Inc.
April 1, 2007 2-32 (973) 334-3100