Description
ILD1000A Local Desk Set
02/12 6
Handset
The desk set is equipped with a handset with a coil cord used for receiving and transmitting calls. The
handset includes a push-to-talk (PTT) pressbar.
Personality Programming Switch (SWA)
Refer to the Main Circuit Board diagram at the end of this manual for the location of the Personality
Programming SWA switch.
SWA Switch Settings Table
Switch Determines:
On
Off
(default)
SWA-1 Automatic Off-hook Monitor
Monitor is asserted when
handset is taken off-hook.
Disabled
SWA-2 Latching
MONITOR
button.
Monitor output latches after
MONITOR
press (until PTT
occurs.)
Monitor output activated
only for duration of button
press.
SWA-3 Parallel audio mute operation.
Mutes speaker audio while
parallel desk set is transmitting.
Handset is not muted.
TX audio from parallel
desk set is heard in
speaker.
SWA-4 Not
used.
N/A
N/A
SWA-5 Not
used.
N/A
N/A
SWA-6 Not
used.
N/A
N/A
SWA-7 Not
used.
N/A
N/A
SWA-8 RX audio level.
1–4 V
RMS
200
mV
RMS
–1 V
RMS
After any switch setting changes (except SWA-8), the power to the desk set must be cycled for the new
settings to take effect.
ILD1000A Basic Local Desk Set Field Replacement Items
Description Part
No.
Fuse, Bussmann Type GMA 750 mA FB
4612-23570-00
Handset, Black
HANDSET-BLACK
PCBA, Replacement “LTL”
69294-003
Speaker Assembly
61501-014
Summary of Contents for ILD1000A
Page 23: ...19 02 12 Main Circuit Board...
Page 24: ...Main Circuit Board ILD1000A Local Desk Set 20...
Page 25: ...21 02 12 Schematics...
Page 27: ...ILD1000A Local Desk Set Schematics 23 Local Desk Set RX Audio Schematic Diagram Sheet 2 of 4...
Page 28: ...Schematics ILD1000A Local Desk Set 24 Local Desk Set TX Audio Schematic Diagram Sheet 3 of 4...