Siemens Industry, Inc.
Building Technologies Division
P/N 315-099458-9
2
-38dBm [HUB-4 to HUB-4] @ 2.5KHz), however, using conditioned data grade leased
lines from the phone company, the distance is unlimited.
Using the RS-485 Interface module, the communication distance is 12,000 feet using
18 gauge twisted pair lines.
OPERATION
On NCC WAN, the HUB-4 can communicate using either the CMI-300, MMX, NIM-1W/
NIM-1M or HUB-4 slave Modem supervising the data circuit as well as the connected
MXL or XL3 Control Panel. Each of the four independent HUB-4 channels provides the
means to transmit data to and from the XLS, MXL or XL3 and the NCC WAN Head-End
System. The HUB-4 can also communicate with up to 16 WAIO cards, supervising the
data circuit for them as well as their inputs. Each of the four independent HUB-4
channels provides the means to transmit data to and from the WAIOs and the NCC
WAN head end system. In addition, the HUB-4 can support FSI protocol to communi-
cate to an MXL using a NIM-1W or to an XLS using a HUB-4 slave so that an NCC or a
Desigo CC via the PMI-2 Concentrator will act as the remote management system.
Similarly, the HUB-4 can support FSI protocol to an RPM in an XLS fire system.
The HUB-4 Card is divided into five main sections: four external link sections and a
control section. The control section provides supervision of the HNET data channel
(Connection to the NCC WAN/PMI-2 Concentrator) and receives data from each of the
external links for transmission to the NCC WAN/PMI-2 Concentrator. The control
section also provides on board processor and integrity supervision. When installed in
the XLS system, the HUB-4 operates in slave mode.
Controls and Indicators
The front panel of the HUB-4 contains one reset switch, 15 LEDs and three HNET
address switches as shown in Figure 1.
A reset switch is located on the top of the front panel. Pushing the reset switch re-
initializes the HUB-4 operation.
The LEDs follow the reset switch and their functions are defined as follows:
POWER
(Green)
Normally ON. When illuminated, indicates that power
for the HUB-4 is applied to the card.
CARD FAIL
(Yellow)
Normally OFF. When illuminated, indicates that the
card microprocessor has failed. May illuminate for 2-4
seconds when initially powered.
HNET FAIL
(Yellow)
When consistantly illuminated, the HUB-4 has de-
tected an HNET loss of supervision of the NCC. When
the HUB-4 detects an HNET failure, it will cause all
configured ports to shut down communication to
remote units. The muted ports will be indicated by a
flashing OPEN/SHORT LED. When flashing rapidly, the
HUB-4 has been addressed via the front panel HNET
address select switches with an inappropriate address,
i.e., address zero, or addressed above 252 decimal.
PORTS 1 – 4
The LEDs for each independent modem block module
or RS-485 Interface module are referred to as ports.
When all three LEDs are flashing for a specific port,
