Comdial Impact Dsu Instructions Manual

1.4 Hardware Summary
The digital telephone system consists of an electronic Digital Service Unit (DSU)usually referred
to as common equipmentoptional expansion modules to extend station and line capacities,
dedicated digital electronic key telephones, and interconnecting wiring consisting of small, 2- or
4-conductor, twisted-pair cable. The digital telephone system supports all Comdial proprietary
digital telephone models.
NOTE: Sxxxx software only supports DigiTech telephones; Ixxxx software supports...

1.5 Common Equipment Description
The common equipment base unit is a fully electronic device. It is essentially a special purpose
computer system acting as a communications controller between central office (CO), private
branch exchange (PBX), or CENTREX supplied lines and the proprietary digital telephone
stations. The software design of the common equipment provides complete system support and
great flexibility of operation.
The system is fully digital with two usable time slots available for each...

Figure 1–1: Common Equipment Dimensions
CAJS 74
4-Line, 8-Station Base Unit
8-Line, 16-Station Base Unit
16-Line, 32-Station Base Unit
3.7 
3.7  2. 
2.132.13
16.5 
14. 
7.43
2.5
21.3 
14. 
7.43
26.25
27.5 16.5 
16.5 
14. 
7.43
4.54
26.25
27.5 
IMI66–107Digital Telephone System
Introducing The DSU 1 – 9 

1.6 Station Descriptions
The digital telephones used with the digital telephone system are electronic,
microprocessor-controlled, devices. They allow not only multiline pickup but also single button
access to features available from the serving CO, PBX, CENTREX, or common equipment. The
digital telephones are available in several different styles with several models available in each
style. The following list details the available telephones.
1.6.1 DigiTech Telephone Descriptions
1
4
72
5
8
03
6
9
#OPER...

Figure 1–3: DigiTech Telephone Dimensions
.625
6.451
7.65 
.6254. 3
4. 6 
1.112
1.251
2. 7 4. 7
CAJS 45
7714X
7714S
77 S
77 1X
IMI66–107Digital Telephone System
Introducing The DSU 1 – 11 

1.6.2 Impact Telephone Descriptions
Figure 1–4: Impact Telephone Images
COMDIAL
1234780#9
56QZ ABC DEF
MNO
WXY GHI
PRSTUV
OPER
JKL
TRNS/CNF
HOLDTA P
INTERCOM
COMDIAL
1234
78
0#9
56QZ
ABC DEF
MNO
WXY GHI
PRSTUV
OPER
JKL
TRNS/CNF
HOLDTA P
INTERCOM
8112N Non-Monitor
IB64X DSS/BLF Console8101N
Single Line Proprietary Telephone
CAJS076
MUTE SHIFTSPEAKERINTERCOM
TRNS/CNF
TAP HOLD
OPERTUV PRS WXYDEF ABC QZ
MNO JKL
GHI
0879
321
#6
54
8024S LCD Speakerphone
MUTE SHIFTSPEAKERINTERCOM
TRNS/CNF
TAP HOLD
OPERTUV PRS...

12S , 112S1 1N,
112N
24 S, 124S
4.64
1 .75
.7.13
..
3.731
1. 34
.
CAJS 77
Figure 1–5: Impact Telephone Dimensions
IMI66–107Digital Telephone System
Introducing The DSU 1 – 13 

1.6.3 Impression Telephone Descriptions
2122S (22-Line Speakerphone)
2122X (22-Line Monitor Telephone)2022S (22-Line LCD Speakerphone)
2101N (Single Line Proprietary Telephone)
unisyn11.cdr
1
2
4
7
0 89 56 3
#
ABC
GHI
PRS
OPERTUVWXY JKLMNO DEF
SPKR
HOLD
TAPITCM T/C
MUTE
unisyn05.cdr
1
2
4
7
0 89 56 3
#
ABC
GHI
PRS
OPERTUVWXY JKLMNO DEF
SPKR
HOLD
TAPITCM T/C
MUTE
unisyn01.cdr
unisyn09.cdr
DU32X (32-Button DSS/BLF Console)
R
Figure 1–6: Impression Telephone Images
Digital Telephone SystemIMI66–107
1 – 14...

Figure 1–7: Impression Telephone Dimensions
9.08
8.90
1.13
4.78
3.94
UNIS029
7.130
8.900
cajs109
2101N
IMI66–107Digital Telephone System
Introducing The DSU 1 – 15 

1.6.4 Station Controls And Indicators
Ringer Volume Control
Each station has a ringer volume control. Adjust the ringer volume of each station to suit your
needs.
Telephone Model Control Location
7114S, 7114X, 8024S,
8124S, 8012S, 8112SRocker switch located on front face
plate. Adjust while ringing to set
volume.
7701X, 8101N, 8112N Switch on bottom housing. Set for
fixed volume levels.
Display Intensity
You can adjust the intensity (brightness and contrast) of the display on LCD telephones any time
the...