Installation Manual

Versus Technology, Inc.
DT10000-A0001 30 Revision 8 December 1998
11. INSTALLING AND CHECKING THE EXTERNAL CONCENTRATOR
The Concentrator Power Supply should be secured to the electrical outlet using a screw or other means to
ensure that it cannot fall out or is disconnected by others working in the same area.
Do NOT plug in the power supply cable until the installation wiring checks are completed. System
damage could occur.
11.1 Network Wiring for Arcnet and Ethernet Concentrators
Arcnet Concentrator
The Arcnet Concentrator requires coaxial cable runs between the network card in the computer and the Arcnet
Concentrator. For multiple concentrator’s, install an appropriate hub. An Arcnet Concentrator requires a 20V
power supply with a securely crimped BNC connector. This is recommended because tests have shown that
screw on BNC connectors are unreliable and inconsistent. It is also recommended that Arcnet hubs utilize a
UPS to protect it if the power is interrupted in a facility. This will allow the concentrator to run on a battery
operated UPS supply. Concentrators can fall out without them. Correct Arcnet cabling needs to be RG62 at
93OHM, for correct specifications.
Ethernet Concentrator
The Ethernet Concentrator requires CAT 5 four pair UTP cable runs between the network card in the computer
and the Ethernet Concentrator. For multiple concentrator’s, install an appropriate network hub or it may also be
connected to an existing Ethernet network within a facility. Ethernet Concentrators call for a 24V power supply
same as the collectors. For more information on the Ethernet Concentrator, refer to the Ethernet Concentrator
manual, Revision 4.
11.2 Power-up Test
When the wiring has been examined and the power supply voltage has been found to be in range, a power up of
the concentrator may be performed to verify its operation.
Plug the power supply connector into the concentrator and observed the red LED indicator lights. If it fails to
light, recheck the power and connections.
CAUTION:
Disconnect the modular cable from any down channel collector(s) and allow it to remain
unconnected during the test. Down channel collectors could be damaged if power is
applied before they have been checked.
Note:
The Wire Run Check-off diagram is included in this manual as a visual reference of cable
runs for system installation. See the Wire Run Check-off Sheet on the next page.