Project Name M-DCPS MASTER Nov. 2014
Project No. SPECIFICATION GUIDELINES 13745 − 6
12. Provision for calls originating from any staff/ classroom station location shall be user-
programmed by a designated administrative telephone for assignment to any location
having displays. Systems unable to so direct station calls are not allowed. Classroom
stations shall be provided with dual call-in switches. Locate wall display next to the
fire alarm and the main display phone.
13. Facilities for answering calls registered in the readout display by dialing their number.
Provide facilities for activating graphic display panels (lighted annunciators).
14. Provide provisions to cancel all staff/classroom station-originated calls from any
authorized administrative telephone.
15. The system shall be capable of restricting and authorizing functions by software
programming from the designated programming administrative telephone. This
programming shall be capable of allowing the individual ports to work with any of the
following combinations of station equipment:
a. Administrative telephone (with dial).
b. Administrative telephone with speaker circuit.
c. Speaker with call-in switch.
d. Speaker only.
16. Emergency Calls: An emergency call to the office from any "call-in" station shall have
a priority alert over other existing communications in the console at the time of the
emergency call by means of a high-pitch continuous buzzer/ring until call is
acknowledged. In addition, if the emergency call is not answered within 60 seconds,
the emergency calls shall be annunciated over designated intercom speakers and
announcement shall include the room number making the emergency call.
17. It shall be possible to make software-feature assignments from the designated
programming administrative telephone as follows:
a. Assignment of each speaker to any combination of 8 paging zones for time-tone
zones.
b. Assignment of loudspeaker intercom access to a group of 1 or more
administrative telephones.
c. Assignment of "executive override" to authorized administrative instruments.
d. Hotline ringing of a programmed telephone station automatically to a designated
location without digital readout capability.
e. Allow/disallow paging, emergency tones, zone page, outside (trunks) line access.
f. Assignment of numbering system (4 numeric characters (0-9) plus one alpha
character (a-j), and selected one-digit access codes.
18. The central console shall contain a serial data port or Ethernet port for connection of
on-site or off-site diagnostics by a distributor or other factory authorized personnel. It
shall be possible to determine circuit and software faults via these diagnostics and
facilities and to make remote software changes and updates to the system. The
system shall also maintain statistics of operations of the main system functions for
use by the individual administering the system.
19. The system shall be capable of operating with loop start trunks. In addition, it may
use ground start or 4 wire audio and 2 wire signal (E&M) for compatibility with existing
and future utility services. It shall be capable of interfacing with the telephone
systems installed in schools.
20. The system shall be compatible with standard PBX signaling for connection to any
existing or future PBX if it contains a built-in telephone system.
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