Specifications

LBI-39100
9
maintained by the CEC/IMC Manager (MOM PC).
Therefore, all CEC/IMC consoles' clocks are
synchronized to the CEC's/IMC's time thus
providing consistent time displays at all consoles.
Standard PC Keyboard
During dispatch operations, the standard PC keyboard is
not used. However, during the console set-up process,
access to this keyboard is required for basic file
management, configurations and maintenance operations.
This keyboard is also used to exit and re-execute the C3
Maestro's application program if/when additional
configuration, diagnostic and/or maintenance procedures are
required.
CEC/IMC Serial Link
Normally, a C3 Maestro console system equipped with
an Enhanced Audio Enclosure uses the PC's COM1 serial
port for control data interfacing to the Console Interface
Module (CIM) within the CEC/IMC Digital Audio Switch.
This serial data link can be wired for RS-232 (3-wire) or
RS-422 (4-wire) operation. Typically, a C3 Maestro is co-
located with the CEC/IMC and wired for RS-422 operation
at 19,200 baud. In a co-located installation, console ⇔ CIM
serial control data links up to 4000 feet (1219 meters) in
length may be employed if RS-422 interfacing is utilized.
If the console is not co-located with the CEC/IMC, full-
duplex 4-wire data modems and dedicated 4-wire data grade
phone lines (or equivalent) may be employed between the
CEC/IMC and the remote C3 Maestro console. In an
installation of this type, both the local serial link at the
console (PC's COM1 port ⇔ console's modem) and the
local serial link at the CEC/IMC (CIM ⇔ CIM's modem)
are typically wired via RS-232 hook-ups. Normally, these
RS-232 links are configured for 9600 baud operation.
Detailed console ⇔ CEC/IMC wiring and configuration
information is contained within the Installation And Set-Up
manual, LBI-39101. LBI-39101 is included with this
manual set.
Enhanced Audio Enclosure Serial Link
In most cases, the PC's COM2 serial port is used for
control data communications between the PC and the
Enhanced Audio Enclosure. This serial port is wired for
RS-232 operation at 9600 baud. Control data transferred
over this duplex serial link includes Enhanced Audio
Enclosure-to-PC messages such as Dispatch Keyboard
keystrokes and VU meter data, and PC-to-Enhanced Audio
Enclosure messages such as start-up initialization
commands, recorder audio switching, and Call Director
audio switching. See the Installation And Set-Up manual,
LBI-39101 for wiring and configuration information.
DISPATCH KEYBOARD
("CUSTOM KEYBOARD")
The C3 Maestro's specially designed Dispatch
Keyboard provides tactile feedback button operation for
dispatch speed equal to a modular-type console. In addition,
the keyboard provides easy control for the advanced features
of the C3 Maestro console. Keys with similar functions are
grouped together and the most frequently used key groups
ESC
F1 F2
F3 F4 F5 F6 F7
F8 F9
F10
SIMULSELECT
CALL
RLSE
CALL
HOLD
CALL
ANSR
CALL
FNCS
PHN / ICOM
TX
PICK
MODULE CONTROL EMERGENCY
ALRM
RST
EMR
CLR
EMR
DCLR
SIMUL
S1 S2
S3
S4
VIEW
PATCH
TONES
ALRT PLSE WRBL
COMMON CONTROL FUNCTIONS
TELEPHONE/ICOM
C3 Maestro
ABC DEF
GHI JKL
MNO
PRS
TUV WXY
*
12
3
456
78
9
0
#
CLR
EDIT CONTROL
HOME
END
PAGE
HIST
SCRL
PAGE
DWN
UP
INSTANT TX
SELECTED TX
P1 P2 P3 P4 P5
PTCH
VIEW
P1
P2 P3
P4
P5
TX TX
TX
TX TX
ENTER
6
MODLMODL
7
13
12345
MODLMODLMODLMODLMODL
8 9 10 11 12
MODLMODLMODLMODLMODLMODLMODL
14
MODLMODLMODLMODLMODLMODLMODL
MODLMODLMODLMODLMODLMODLMODL
1234567
8 9 10 11 12 13 14
TX TX TX TX TX TX TX
TX TX TX TX TX TX TX
MODULE
SELECT
VOL VOL MODLMODLCONV
MUTE MDFY FNCS
MODLMODL
FNCS HIST
PVT
MENU ALL SEL
HELP
MAIN MUTE ICALL
TX TX TX
ALT
PRMT DRCR ICALL
Figure 2
−−
C3 Maestro Dispatch Keyboard