Alcatel-Lucent omniacces-voip gateway User Manual

Page 2-16

The VSB daughtercard requires jumpers for Network Terminator (NT), also referred to as Line 
Terminator (LT), and Terminal Equipment (TE), impedance, and power feeds, be set as 
follows and in the order presented, e.g., NT (LT)/TE jumper/switch settings must be set on 
the VSB before any other jumpers on the board. In general, the jumpers are set on a per port 
basis. Locations of the jumpers are illustrated below.

The jumpers are factory set on the VSB daughtercard, and should be changed by customers 
only under the circumstances as listed below for each jumper. Note that, in general, only 
jumpers which can be set with shunts are identified and described. Jumpers should be set in 
the order in which they are presented.

♦ Note ♦

All VSB daughtercards are factory set to the defaults, 
including but not limited to jumpers J16 and J18, J25 
through J28, as well as J29 and J30, and the corre-
sponding NT (LT)/TE switches. This board is used 
only to provide Euro BRI ISDN (E1 ETSI) capabilities, 
and cannot be used in North America. See also VSD 
Jumpers on page 2-12.