Two way radio, Telephone network – Ring Communications CB901EX User Manual

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April 2012 Operations Manual CB901EX

TWO WAY RADIO

The CB901EX system may be connected to a radio base station for communication on a closed

two-way radio network. An interface unit (IF935) is required and is given an ordinary subscriber
number. If the radio system is simplex PTT then the subscriber number should be programmed with
privilege “Simplex Always” The radio receive signal may be connected to the program distribution
channel for monitoring.

TELEPHONE NETWORK

An interface (IF934P) can be supplied to operate between a telephone network and the CB901EX.

The interface is used to make calls from any intercom station to the telephone network and to make a
call from an outside telephone to any intercom station.
The interface may be used as a speed dialer to a telephone number used for answering intercom calls
from elevator intercoms in a night transfer mode of operation. The device type of the interface is set to
PBX, and the speed dial number is programmed from the DNA100. A delay may be entered as P1 for
one second delay to P9 for 9 second delay. Example: P29P31234567 will delay 2 seconds (waiting for
dial tone), dial 9, delay 3 seconds, then dial 1234567. When a call enters the personal que of the
interface it will speed dial the remote telephone number, connect the station in que to the telephone line
and then wait for disconnect from the remote telephone before releasing the connection between the
interface and the intercom station. After 2 seconds (programmable subscriber timer) the next call in
personal que will repeat the process.
If the interface does not have the privilege “Personal Queue” then calls made to the interface will not
activate the dialer and the phone number must be manually dialed. If transfers are activated from other
stations (lobby master) , then theses calls are automatically placed in the personal que of the interface
and will use the speed dialer out on the telephone line. This way a motor room master may use the
interface for manually dialed calls, while elevator intercoms that dial the lobby master will be
transferred to the personal que of the interface and use the speed dialer. The lobby master may have an
infinite transfer delay during the day when all calls are answered by the lobby master. At night the
lobby master is placed in privacy and all calls are transferred to the telephone interface.

DRECT ACCESS MASTER

This master station will connect to the intercom stations programmed in the Direct Acces when

a contact closure activates Initiative. When the contact closure is removed the station will cancel.

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