Introduction
TX3 Telephone Access System Installation and Operation Manual 9
Units, typically located in the electrical/telephone room of a building. The NSL
units intercept all telephone lines into the building’s suites and communicate
directly to the resident phone using the Lobby Control Unit.
Note: Non-configurable PBX systems are not supported. For more
information, contact technical support at Mircom.
1.1.2 Elevator Restriction Units
The TX3-ER-8-A and TX3-ER-8-B Elevator Restriction Units limit building
accessibility by granting visitor access only to the destination floor.
1.1.3 Other Controllers
Other Mircom controllers, such as the Elevator Restrictor Unit and the Card
Access controller, may be networked with the Lobby Control Unit. The network
options include a peer-to-peer RS-485 network, an Ethernet TCP/IP network, or
a combination Ethernet TCP/IP network with RS-485 subnetworks. See section
3.6 on page 34 for more information.
Notes: In order for a panel to connect to an Ethernet TCP/IP network:
• it must be IP capable. Panels described in this manual are
IP capable.
• it must have a TX3-IP IP Module installed if it is not a
Touch Screen.
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