
Chapter 1
System Overview
1-1 System Configuration.................................1-3
1-2 Specification...............................................1-6
1-3 Key Service Unit Layout.............................1-7
1-4 Digital keyphone°Øs Control Location..........1-8
1-5 Exploded View............................................1-9

1-1 System Configuration
System Specification
Chapter 1. System Overview
System Item
Processor Type
Main Memory
Switch Structure
Man-Machin Interface
ISDN Interface
E1 Interface
System Capacity
Combination of
Boards
Basic
Basic + 3TRK
Basic + 4S0T0
Basic + 4S0T0+8DLI*2
Basic + 3TRK*2
Basic + (4S0T0 + 8DLI*2
+ EXP (4S0T0 + 8DLI*2)
Basic + (6TRK + 8DLI*2
+ EXP (6TRK + 8DLI*2)
Loop Start
Trunk /BRI/F
0
3
4(8CH)
4(8CH)
6
8(16CH)
12
Key sets
8
8
8
24
16
40
40
Specification
MC68EC000
16Bit Mode
ROM : 1M Bytes (1M Bytes)
RAM : 256K Bytes (256K Bytes)
( ) : Option
256°ø256 Time slot
MMC : RS-232C
Remote MMC : Modem
S0T0/PRI
E1 : 30 Channels
KDB-D/
SLI
KDB-S
8
8
8
8
8
8
Max Capacity
(Including KDB line)
0 *8 (16)
3 *8 (16)
8 *8 (16)
8 *24 (32)
6 *16 (24)
12 * 40 (40)
16 * 40
°ÿIn this table, 4S0T0 is used as digital trunk.
°ÿ4S0T0 card can be used as ISDN NT. Each port can have up to 8 ISDN TEs, but power
consumption of each port is limitted to 4 WATT.
Detailed description is refered to user’s manual.
1-3

Chapter 1. System Overview
1-1-1 Expansion Cards
1. 3/6 TRK Card : Used to expand 3/6 C.O lines.
2. 8 DLI Card : Used to expand 8 keysets.
3. 8 SLI Card : Used to expand 8 single line telephones.
4. 4S0T0 Card : Support 4 port ISDN S0T0 interface.
5. MISC1 & MISC2 : Equipped with DTMF receiver (4CH), RS232C port (2 ports), Modem
(Option), AA (Only MISC2 card).
6. E1 : Digital TRK.
7. AA : Auto Attendant Card.
8. VDIAL : Voice Dial.
9. COMPACT(Old version of COMPACTII) expansion card can be used at this system.
1-1-2 Station equipment
1. LCD24B : Digital Keyset equipped with LCD.
2. STD24B : Digital Keyset without LCD.
3. AOM : Add On Module.
4. 6B Basic : Basic Digital Keyset.
5. DPIM : Door Phone Interface Module
6. SIM : Serial Interface Module
7. KDB-d : Installed in a digital keyset and provide 1 port to connect any digital keyset.
8. KDB-s : Installed in a digital keyset and provide 1 port to connect any single telephone.
1-1-3 Precautions
– Install or remove the cards only when the power is OFF.
– 4 SLI, MEM, MISC should be installed into the dedicated place.
– POWER supply and MEM must be installed.
1-4

1-1-4 COMPACTII(PLUS) Commection View
D
Digital Keyset
Chapter 1. System Overview
D : Line for Keyset
S : Line for Standard Phone
C.O Line
MDF
DCS
COMPACT II
(PLUS)
AOM
D
Digital Keyset
+KDB-d
µ ¡ˆ ≈ª≈∞∆˘¿¸» ≠±‚
£´¡¢º” ∫∏µÂ(KDB S)
D
S
SIM
SIM
DPIM
VMS
AOM
PC
Door Phone
Fax
Modem
Standardphone
PC
Fax
Modem
VMS
MISC
RS232C
MODEM
PFT(2)
S
D
MOH
PAGE
(DPIM)
1-5
Remote
Telephone for PFT
(Standard Phone)
Standard Phone
Door phone
Music input
External paging
PCMMC
SMDR
Remote MMC

Chapter 1. System Overview
1-2 Specification
1-2-1 Electrical Specification
°‹AC Input : 220V/240V
°‹Power Comsumption (Max) : 96WATTS
Sorts
CH1
CH2
CH3(BATT)
Max. DC Voltage
–55.0V(±4%)
+5.0V(±2%)
–54.0V(±4%)
1-2-2 Dimension and Weights
Height
DCS COMPACTII (plus)
DCS COMPACT II
LCD24B
AOM
DPIM
SIM
464
464
242.6
225
127
127
1-2-3 Environmental Limits
1. Operating Temperature : –10˚C ~ 40˚C
Humidity : 5% ~ 95%
Rating Current
0.5A
0.8A
0.1A
Width
467
315.4
223.4
107
97
97
Depth
148.2
148.2
95.2
93
32
32
Max. Current
0.7A
1.5A
0.3A
mm, kg
Weight
12.5
7.7
1.01
0.6
0.17
0.17
2. Storage Temperature : 0˚C ~ 50˚C
1-6

1-3 Key Service Unit Layout
Chapter 1. System Overview
1-7

Chapter 1. System Overview
1-4 Digital Keyphone’s Control Location
1-8

1-5 Exploded View
Chapter 1. System Overview
1-9