6
Type of Phones
Model
Description
DK1-21
Multifunction Key Telephone. Includes 32 character LCD display,
speakerphone, handsfree, headset jack, 20 dual color keys and 14 function
keys for feature access, DSS, CO Lines and speed dial.
DK2-21
Multifunction Key Telephone. Includes 64 character LCD display,
speakerphone, handsfree, headset jack, 22 dual color keys and 17 function
keys for feature access, DSS, CO Lines and speed dial.
MAXIMUM LOOP RESISTANCE/IMPEDANCE
Key Telephone
26 AWG / 200 m
24 AWG / 300 m
Single Line telephone
26 AWG / 1000 m
22 AWG / 3000 m
Doorphone
24 AWG / 300 m
Music Source Input Impedance
600 ohms
Maximum Input
0.775 VRMS
INTERNAL RELAY CONTACTS
Type SPST
Rating
1 AMP, 24VDC
Function
Door Switch, Music on Hold, etc
CABLE REQUIREMENTS
CO/PABX Line
Twisted 1 Pair (2 wires)
ISDN BRI
Twisted 2 Pair (4 wires)
ISDN PRI
Twisted 2 Pair (4 wires)
DK1/DK2/DK3/DK6/ACP Digital Key
Telephone
Twisted 1 Pair (2 wires)
Doorphone
Twisted 1 Pair (2 wires)
Door Switch
Twisted 1 Pair (2 wires)
External Sensor
Twisted 1 Pair (2 wires)
External Music Source
Twisted 1 Pair (2 wires)
Single Line Telephone
Twisted 1 Pair (2 wires)
