NEC 2000 IVS manual LINE/TRUNK Circuit Cards

3.LINE/TRUNK CIRCUIT CARDS

Table 2-3shows the functional outline of each line/trunk circuit card.

	Table 2-3	Functional Outline of Line/Trunk Circuit Cards
CARD NAME	FUNCTIONAL		FUNCTIONAL OUTLINE
	NAME
			2-line Amplifier Trunk card.
PN-2AMPA	AMP		This card is equipped with the functions of Echo Canceller (EC), Automatic Gain
			Controller (AGC) and Tone Disabler (TD).
			2-line Long-Line circuit card provided with the Power Failure Transfer (PFT)
			function.
PN-AUCA	AUC		Line resistance in the case of a long-line circuit: Max. 2500 ohms (inclusive of
			the internal resistance of the distant office equipment)
			This card is internally equipped with a –48 V DC On-Board Power Supply.
			This card can also be used as a 2-line Direct Inward Dialling trunk card.
			Conference Trunk card
PN-CFTA	CFT		Use of one card: Can control a conference of up to six participants.
			Use of two cards:Can control a conference of up to ten participants.
PN-4COTB	COT		4-line Central Office Trunk card (Ground Start/Loop Start trunk) equipped with
			the functions for loop detection, sending/detecting ground on Ring/Tip wire.
PN-4COTG	COT		4-line Central Office Trunk card (Loop Start trunk) equipped with the functions
			for loop detection, receiving/sending the CALLER ID (CLASS SM) signal.
PN-2DATA	DAT		2-line Digital Announcement Trunk card.
			Duration: Max. 60 seconds.
			Circuit card for External Relay Control/External Key Scan.
PN-DK00	DK		This card is provided with eight circuits, and can provide the above-mentioned
			control functions on a per circuit basis.
			4-line Direct In Dialing Trunk card.
PN-4DITB	DIT		This card is equipped with the function for loop detection, sending reverse signal
			and PB to DP signal conversion.
			This card is internally equipped with –48 V DC On-Board Power supply.
			2-line Digital Line Circuit card for Dterm Series E/Series III/DSS Console.
			[–48V Version, 2-wire type, line length: max. 850 m (2789 ft.)]
PN-2DLCB	DLC		This card is equipped with quick diagnostics to detect short line conditions and
			the normality (Synchronous/Asynchronous) of the terminal.
			This card is internally equipped with a –48 V DC On-Board Power Supply.
			2-line Digital Line Circuit card for Dterm Series II/SN610 Attendant Console.
			[–48 V Version, 4-wire type, line length: max. 1200 m (3940 ft.)]
PN-2DLCC	DLC		This card is equipped with quick diagnostics to detect short line conditions and
			the normality (Synchronous/Asynchronous) of the terminal.
			This card is internally equipped with –48 V On-Board Power Supply.
			2-line Digital Line Circuit card for Dterm Series E/Series III/DSS Console.
			[–48 V Version, 2-wire type, line length: max. 850 m (2789 ft.)]
PN-2DLCN	DLC		This card is equipped with quick diagnostics to detect short line conditions
			and the normality (Synchronous/Asynchronous) of the terminal.
			This card is internally equipped with a –48 V DC On-Board Power Supply.
CHAPTER 2			ND-45504 (E)
Page 6
Revision 2.0