TOA Electronics CP-66 External interfaces, Types of external interfaces, OD interface

External interfaces

1.Types of external interfaces

External interfaces are classified into four types: OD interface, LD interface, CB interface, and Tie-line inter- face (depending on their external equipment).

(1)The OD interface connects the intercom system to the external PBX via 4-wire rented lines.

(2)The LD interface connects the intercom system to the internal PBX via 2-wire rented lines.

(3)The CB interface connects the intercom system to the external and internal lines of the PBX.

(4)The tie-line interface connects two or more ex- changes.

2.Descriptions of each interface

(1)OD interface

This interface, when connected to the PBX in the remote area via the EXES-6000 exchange, permits normal calls, paging calls, etc. to be made between the intercom station and the PBX extension tele- phone.

(2) LD interface

This interface, when connected to the internal PBX via the EXES-6000 exchange, permits normal calls, paging calls, etc. to be made between the intercom station and the PBX extension telephone.

(3)CB interface

This interface, when directly connected to the PBX extension line or to the telephone line via the EXES-6000 system, permits the intercom station to make and receive an external telephone call. The CB-600 lines can also be used for interfacing with an in-house pager system, a city pager system, etc.

(4)Tie-line interface

This interface connects two or more EXES-6000 exchange via the rented lines for normal calls, paging calls, etc. between stations that are remote from each other.

a. Telephone line		Telephone line
b. PBX extension		interface
		(CB-600)
2W direct line		PBX interface
		(LD-600)
4W direct line	In-band ringer	PBX interface
	(other manu-
		(OD-600)
	facturer)
		Tie-line
4W direct line		interface
		(TI-600)

In-house exchange

EX-610

EX-620

EX-630

Intercom station

(sub)	HF-200M
Special terminal	HF-210M
	HF-640S
board	HF-650M
To other intercoms	HF-660M

BX-610		TL-600M
BX-620
		TL-600S
	In-house broad-	TL-610M
		TL-620M
	casting equipment

3.Numbering schedule of external interfaces

Before the external interfaces can function, the access number (selective number) for each interface must first be registered through No.200 programming. (For details, refer to the Installation Manual for the CP-66).

(1)OD interface

Register the access numbers to use for seizing the OD lines according to the OD-600 line registration

(Function Code No.23 of No.200 programming). If it is desirable to connect the intercom system to two or more PBX's installed in different loca- tions, this can be accomplished by dividing the OD lines and registering the access number of each split line.

(2)LD interface

Register the access number to use for seizing the LD lines according to the LD-600 line registration (Function Code No.24 of No.200 programming). By dividing the LD lines into several groups and register- ing their respective access numbers, the lines can be connected to more than one PBX.

(3) CB interface

Register the access numbers to use for seizing the

CB lines as well as for picking up an incoming tele-

phone call according to the CB-600 line registration

(Function Code N0.25 of NO.200 programming).

Also register the calling tone mode for receiving

telephone calls, and the group numbers of stations

capable of call response.

(4)Tie-line interface

Register the access numbers to use for seizing the Tl lines according to the TI-600 line registration (Function Code No.26 of No.200 programming). By dividing the lines into two or more groups and registering their respective access numbers, more than one intercom system can be connected to each other.

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