Table of Contents
Advertisement
Configuration
3
The module is easy to configure and build into expanded systems using expansion
cables and jumpers.
8 BALANCED OR UNBALANCED
DIGITAL AUDIO INPUTS
PL23 - PL26
INPUT
SET-UP
CONTROL PANEL AND
BINARY SELECT LINES
LAMP SUPPLY
LOW VOLTAGE
DC SUPPLY
STATUS DATA
Configuration jumpers
Jumper
PL2
PL3
PL4&PL5
PL6
PL11
PL12
PL13
PL14
PL23-PL26
10
8x1
8x1
CONTROL
LOGIC
PL6
64X1 SELECT
PL3
MODE
BUTTON/BIN
BATT
POWER LED
POWER
REG
STATUS
MON
4408 8x1 switch schematic view
Condition
Function
MUTE
Used with the 4405 re-framer
BUTTON
Simple button per crosspoint control
BIN
Binary control, used in expanded systems and computer control
OFF or ON
Audio expansion bus , used when expanding sources
OFF or ON
64x1 select, modifies binary addressing when expanding above 32x1
OFF or ON
DIS OUT, used to disable downstream cards when expanding sources
OFF or ON
CLOCK I/O, output clock for downstream cards when expanding sources
FIELD TRIGGER, used to distribute to downstream cards for synchronous
OFF or ON
switching
Battery supply, used to distribute 3.6V crosspoint retention power to
OFF or ON
other boards in a system
Five position
Used to select set-up for each input - see separate chart
PL9
OUTPUT
SWITCH
PL2
MUTE
CH 1
CH 2
CH 3
CH 4
CH 5
CH 6
CH 7
PL4
PATH -
CH 8
PL11
CHANNEL SELECT LEDS
DIS OUT
PL13
FLD TRIG
PL10
4408
PL7
BAL/UNBAL
DIGITAL AUDIO
OUTPUT
PL5
PATH +
EXPANSION
PL12
ENABLE
CLOCK I/O
JUMPERS
PL14
BATT SUP
PL8
Issue 3
Advertisement
Table of Contents
