user manual

CHAPTER 2 ND-45504 (E)
Page 6
Revision 2.0
3. LINE/TRUNK CIRCUIT CARDS
Table 2-3 shows the functional outline of each line/trunk circuit card.
Table 2-3 Functional Outline of Line/Trunk Circuit Cards
CARD NAME
FUNCTIONAL
NAME
FUNCTIONAL OUTLINE
PN-2AMPA AMP
2-line Amplifier Trunk card.
This card is equipped with the functions of Echo Canceller (EC), Automatic Gain
Controller (AGC) and Tone Disabler (TD).
PN-AUCA AUC
2-line Long-Line circuit card provided with the Power Failure Transfer (PFT)
function.
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.
PN-CFTA CFT
Conference Trunk card
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.
PN-DK00 DK
Circuit card for External Relay Control/External Key Scan.
This card is provided with eight circuits, and can provide the above-mentioned
control functions on a per circuit basis.
PN-4DITB DIT
4-line Direct In Dialing Trunk card.
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.
PN-2DLCB DLC
2-line Digital Line Circuit card for D
term
Series E/Series III/DSS Console.
[–48V Version, 2-wire type, line length: max. 850 m (2789 ft.)]
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.
PN-2DLCC DLC
2-line Digital Line Circuit card for D
term
Series II/SN610 Attendant Console.
[–48 V Version, 4-wire type, line length: max. 1200 m (3940 ft.)]
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.
PN-2DLCN DLC
2-line Digital Line Circuit card for D
term
Series E/Series III/DSS Console.
[–48 V Version, 2-wire type, line length: max. 850 m (2789 ft.)]
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.