Siemens Industry, Inc.
Building Technologies Division
2
A6V10322639_b_en_--
Figure 2
Installing the NRC
OPERATION
The NRC continuously monitors the network for activity and reports any problems to
the PMI/PMI-2. In some cases, a reset at the PMI/PMI-2 is required to clear network
troubles.
Controls and Indicators
The front panel of the NRC contains one reset switch, three
LEDs, one Monitor port, one USB port, and one Ethernet port as shown in
Figure 1.
A reset switch is located on the top of the front panel. Pushing the reset switch
reinitializes the NRC.
The LEDs follow the reset switch and their functions are defined as follows:
POWER
(Green)
Normally ON. When illuminated, indi-
cates that power for the NRC is applied
to the card.
CARD FAIL
(Yellow)
Normally OFF. When illuminated, indicates
that the card microprocessor has failed.
TROUBLE
(Yellow)
Normally OFF. When illuminated, indi-
cates trouble in the Network such as
wire faults or module failure. The Trouble
LED will illuminate under the following
conditions:
1. Wire faults (open or short) in either
Port 1 (In) or Port 2 (Out)—See Figure 5.
2. Ground fault on outgoing port (Port 2).
3. XNET communications problems
between the PMI/PMI-2 and the NRC.
PRE-INSTALLATION
The NRC does not have a network address but it does need to be included in the
Zeus configuration.
INSTALLATION
The NRC plugs perpendicularly into one slot in the CC-2 or CC-5 card-cage via two
96-pin DIN connectors (only 64-pins are used) and can occupy any slot in the card
cage. (Refer to Figure 2.)
Slide the NRC card into the card guides front bezel up (lettering on the
front panel is legible) until the card cage connectors contact the
motherboard receptacles.
Verify that the card edge connectors align properly with the
motherboard receptacles. There is only one correct way to plug in the
card. If it does not align, DO NOT FORCE the card.
Place thumbs on the front panel adjacent to the captive screws and
gently apply even pressure on the card until the connectors plug firmly
into the motherboard receptacles. Secure the NRC to the card cage with
the captive screws.
