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TANDBERG Gateway
11
Introduction
Rear view
The back panel provides four PRI interfaces, two LAN interfaces and one RS 232 interface located together with
the power switch/connector and four cooling fans.
THE ‘LAN 2’ CONNECTOR IS NOT USED.
FOR MORE DETAILS ON CAPACITY, SEE ‘APPENDIX 3: CAPACITY’
TIP
GATEWAY Capacity – typical scenarios (4 Mbps option)
Below is an overview of the number of video calls possible to connect on different bandwidths, when 2xE1 (or
3xT1) PRI ISDN lines are connected. In addition to the video calls, telephone calls can also be made through the
gateway.
Bandwidth Non-encrypted Encrypted
128 kbps 8+8* 7+0
256 kbps 8+7 6+5**
384 kbps 8+4 5+5
512 kbps 7+4 5+0
768 kbps 5+0 3+8
1472 kbps (1.5 Mbps) 2+8 N/A
1920 kbps (2 Mbps) 2+0 N/A
* 8+8 indicates 8 video calls and 8 telephone calls.
** 6+5 indicates 6 encrypted video calls and 5 unencrypted telephone calls.
I
o
LAN 1 LAN 2 PRI 1 PRI 2 PRI 3 PRI 4 RS 232
NOTE