About This Guide
8
zNID Hardware Installation Guide
T1/E1
T1 is Trunk line 1 (or DS 1, digital signal level 1). E1 is the
European equivalent, though there are a number of differences
between the North American T1 and the European E1.
UPC
Ultra physical contact (for fiber connector)
Wi-Fi
Wireless local area network (trademark of Wi-Fi alliance)
VAD
Voice Activity Detection
VOIP
Voice over IP
zNID
Zhone Network Interface Device
ZMS
Zhone Management System
Table 1: Acronyms and their descriptions (Continued)
Acronym
Description
