CHAPTER 2
ND-45492 (E)
Page 4
Revision 2.0
Note :
Refer to the Circuit Card Manual for details of circuit cards.
Table 2-1 Description of Symbols in Trunking Diagram
SYMBOL
DESCRIPTION
SYMBOL
DESCRIPTION
AMP
Amplifier for External Speaker
KEY
External Key
AP00
SMDR/Hotel Application Card
LCD
Line Circuit Card
(for Single Line Telephone)
AP01
OAI Interface Card
LCI
Line Circuit Card for Voice Mail Integra-
tor
AUC
Analog Universal Circuit Card
(Long Line Circuit, DID Trunk)
MAT
Maintenance Administration Terminal
BGM
External Music Source for D
term
Back
Ground Music Service
MDF
Main Distribution Frame
CCH
Common Channel Handler Card
MEM
Main Memory
CFT
6/10 party Conference Trunk Card
MFR
MF Receiver Trunk Card
COT
C.O. Trunk Card
MLDT
Melody Trunk Card
DAT
Digital Announcement Trunk Card
MODEM
Modem
DCH
D-Channel Handler Card
MP
Main Processor Card
DIT
DID Trunk Card
PFT
Power Failure Transfer
DK
External Relay/Key Interface Card
PMS
Property Management System
DLC
Digital Line Circuit Card (for D
term
/SN 716
DESKCON)
CDT
OD Trunk Card (2/4 wire E&M)
DLCB/DLCN
Digital Line Circuit Card (for D
term
Long
Line/SN 716 DESKCON)
PBR
PB Receiver Card
DLCC/DLCF
Digital Line Circuit Card
(for SN610 ATTCON)
PBSND
PB Sender
DPC
Data Port Controller Card
PLO
Phase Lock Oscillator
DSS
DSS Console
SMDR
Station Message Detail Recording
DTI
Digital Trunk Interface Card
SW
Time Division Switch
DTG
Digital Tone Generator
TNT
Tone/Music Source Interface Card
ETHER
Ethernet Control Card
16CFT
16 Circuit Three/Four Party Conference
Trunk
FP
Firmware Processor Card