Hardware manual

Issue 8 Electra Elite
2 - 2 System Specifications
DTI Digital Trunk Interface
ECR External Control Relay
ESI Electronic Station Interface
HDLC High Level Data Link Control
HFU Handsfree Unit
HUB Optional HUB Ethernet Interface
IAD Optional Integration Device
IPCA Pure IP Switch
IPT Internet Protocol Trunk for VoIP
ISDN Integrated Services Digital Network
LAN Local Area Network
MDF Main Distribution Frame
MG Gateway Between IPCA ETU and CPUB
ETU
MIC Microphone
MIF Multipurpose Interface
MOH Music On Hold
OPX Off-Premise Extension
PBR Push Button Receiver
PC Personal Computer
PCM Pulse Code Modulation
PCT (C) PC Telephony Board (Coreline Interface)
PCT (S) PC Telephony Board (without Modem)
PRT Primary Rate Trunk
PS II Personal System Wireless Terminal
SLI Single Line Interface
SLT Single Line Telephone
SPK Speaker
TLI Tie Line Interface
VDD Voice Data Digital Adapter
VDH Voice Data Hub
Table 2-1 List of Abbreviations (Continued)
Abbreviation Description