Toshiba CTX28 manual Telephone Option Straps, 11-9, DKT3020-SD, Connector Locations

Station Apparatus

3000-series Telephone Option PCBs

Telephone Option Straps

Certain option straps on the DKT3000-series phones must be cut when installing carbon handsets, external power or headsets. Refer to Table 11-6and Figures 11-7~11-9for further instruction.

Table 11-6 Station Option Interface PCB Compatibility

Name of	DKT3010-S,
the Strap	DKT3020-S,	DKT301	DKT300	Explanation
on the DKT	DKT3010-SD,	4-SDL	1
PCB	DKT3020-SD
				If a carbon-type handset or carbon-type headset
				is connected to the handset jack, the carbon wire
Carbon	W301, W302	W301,		jumper straps, listed on the left, must be cut
		W302		inside the telephone. When a carbon headset is
				connected to the BHEU, you do not need to cut
				the straps. See Figures 11-7~11-9.
				To turn off the handset receiver when the
HEU	W303	W303	W103	handset is on-hook and a headset is used with
				the BHEU, cut the “HEU” strap shown on the left.
				Cut the “EX.POWER” straps only when external
EX.POWER	W101, W102	W101,	W101,	power is connected to the second pair (pins 2
		W102	W102	and 5) of the telephone modular jack. See
				Figures 11-7~11-9.
SET UP	W401, W402	W401,		Do not cut – for factory use only.
		W402

GND W402

SET UP

EX.POWER

W101

W102

EX.POWER

W401	P1	/ADM
	RED	PCI
Carbon W302	P2	/VSU
	P3	HEUPCI
	RED
	RED
	HEU
	W303
	P6	VSU
	CARBON
		PCI/
	W301
	RED

W101

W102

EX.POWER

W401 GND W402 SET UP

HEU

W303

CARBON W301

CARBON

W302

5668

RED P1	PCI /ADM
RED P2	PCI /VSU
RED P3	HEU
P6	PCI/ VSU
RED

Station Apparatus

5603

Figure 11-7 DKT3010, DKT3020 Strap and	Figure 11-8 DKT3014 Strap and Connector
Connector Locations	Locations

Strata CTX I&M 06/04 11-9