TFT Inc EAS911PLUS User Manual
1-2
operator to transcribe or remember text. A touch screen display gives the operator instant access to the last ten
messages either received or sent.
messages either received or sent.
Six audio inputs and two RS-232 data inputs are standard on the EAS911+ to connect to receivers for the two
required monitoring assignments of the EAS911+. An Internet/Ethernet connection is provided for connection to
CAP servers.
required monitoring assignments of the EAS911+. An Internet/Ethernet connection is provided for connection to
CAP servers.
A single audio output connects to external audio switching and distribution systems or to an optional TFT EAS
940A transmitter/program interrupt unit. This optional interrupt unit provides four balanced, isolated input and
output channels that are switched to a combined common signal during an emergency message transmission. The
common audio output provided by the EAS911+ contains all the Header, Attention Signal and EOM codes in proper
EAS format for emergency alerting.
940A transmitter/program interrupt unit. This optional interrupt unit provides four balanced, isolated input and
output channels that are switched to a combined common signal during an emergency message transmission. The
common audio output provided by the EAS911+ contains all the Header, Attention Signal and EOM codes in proper
EAS format for emergency alerting.
1.3
SPECIFICATIONS
The EAS911+ performance and physical specifications are listed in Table 1.3-1.
Table 1.3-1. EAS911+ Specifications
ENCODER SECTION
Protocol ............................. FCC EAS codes, 520.83 bits per second. 2083.3 Hz mark and 1562.5 Hz space
frequency, ASCII 8-bit characters
Attention Signal ................. 853 and 960 Hz ±5 Hz. Default for 8 seconds, the FCC fixed duration.
PASSWORD Key ............. Enables 3-digit password entry for operator level . Additional 3-digit password required for
program changes
EXIT Key ........................... Interrupts operation in progress and returns system to Banner/Ready mode
PRACTICE Key ................ Allows closed-loop self-test for training and unit performance verification; inhibits on-air
relay closure and transmission of data to COM ports
SEND HEADER Key ........ Activates transmit relay and sends pre-constructed header message
SEND EOM Key ................ Activates transmit relay and sends End Of Message code
EVENT Keys ..................... 12 keys for user-assigned events
WEEKLY TEST Key .......... Allows the EAS routine weekly test to be generated with a minimum of keystrokes
LOCATION(S) Keys .......... 14-keys for user-assigned locations
SUBDIVISION Keys .......... Allows selection of 9 subdivisions within a location
DURATION Keys .............. User-entered duration of the event in prescribed interval
CONFIRM Keys ................ Confirms completion of each step in encoder programming
ON-AIR RELAY LED ......... Indicates that the On-Air relay is closed
DECODER SECTION
REVIEW Key .................... Allows review of last valid received message
LED Indicators ................... 5 yellow LEDs to indicate incoming EAS channel, four analog and one digital. Two yellow
LEDs to indicate AUTO or MANUAL forwarding mode of operation and one red LED to
show ALERT relay status
show ALERT relay status