User's Manual

www.vyyo.com
System Configuration Introduction – p. 17
1.4.2 Modems with DOCSIS, IP and E1/T1
The V311 is a V280 modem (to provide the DOCSIS layer) with one E1/T1
interface (via an RJ45 connector on the front panel) added. In addition to IP
connectivity, it supports circuit switched E1/T1 applications. It has one 100
BASE-T port for IP data and one E1/T1 port which can support up to 32/24 time
slots.
The E1/T1 application supports framed or unframed E1/T1 services. In the case
of unframed configuration, all 32/24 time slots (including time slot 0) are delivered
over the air.
In the case of framed E1/T1 configuration, a full or fractional E1/T1 (any number
up to 31/23 time slots) can be delivered.
The V311 modem is shown in this image:
Figure 1-5: V311 Modem