User manual

TD990200-0ME
7
Even though the Metasys Ethernet Router looks like a data router to
the Metasys Network, most communications experts would call it a
network gateway. To the Ethernet network, the router looks like a
normal IBM PC workstation. Unlike typical network gateways and
routers, the Metasys Ethernet Router does not process:
• routing protocols used by standard network routers, except for
UDP/IP communications from other Metasys Ethernet Routers
• messages not generated by Metasys
The Metasys Ethernet Router responds to TCP/IP “Ping” commands,
allowing you to verify that the router is operational and properly
connected to the Ethernet network.
Subnet Communication Upon Network Failure
If the Ethernet network goes down, or the router disconnects or fails,
each Metasys subnet continues to function on a standalone basis. A
Metasys Ethernet Router failure looks like a general failure of the
Metasys N1 network. Devices on a subnet are still able to
communicate with other devices on that subnet, but devices on a
different subnet are offline.
Hardware Requirements
The following are additional hardware requirements of the Metasys
Ethernet Router:
• Metasys Network with NCM200 or NCM300 at any revision;
or, NCM101/NCM401at Revision K or later
• 10BASE-T Ethernet connection
• ARCNET connection (i.e., Metasys N1 LAN)
• 120 VAC power at each Metasys Ethernet Router location
• Any MOD HUB series powered card cage with two spare slots
• At least one EXP expansion module installed in the same
MOD HUB
Note: Contact Contemporary Controls regarding use of a MOD
HUBplus chassis.