ADTRAN 1200218L1, User Manual

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Chapter 1. Introduction
61200663L1-1 OSU 300 User Manual 1-5
V.35 Card
The optional V.35 card plugs into an expansion slot on the rear of
the OSU 300 to provide a V.35-type DTE interface. The V.35 card
operates similarly to the HSSI card, except that the maximum
bandwidth of the V.35 card is limited to 10 Mbps.
Like the HSSI card, the V.35 card can be hot inserted or swapped,
and it installs just as the HSSI card does. However, instead of the
standard HSSI connector, this card contains a standard 34-pin V.35
connector for DTE connections. See the section DTE Ports 2-4
(Expansion Slots) on page 2-5 for more information on installing
option cards.
Quad DSX-1 Card
The optional Quad DSX-1 interface card plugs into the card slots on
the rear of the OSU 300. This card allows you to transport up to
four DSX-1 lines per card over the DS3 interface of the OSU 300
along with high-speed data from the other HSSI/V.35 ports. This
configuration allows connectivity of both voice channels and high-
speed data channels for two point-to-point sites using only one
network interface. Up to three cards may be installed into the OSU
300 port card slots.
Like the other interface cards, the Quad DSX-1 card can be hot
inserted or swapped. See the section DTE Ports 2-4 (Expansion Slots)
on page 2-5 for more information on installing option cards.
Even though the Quad DSX-1 interface card allows you to transport T1
information, the OSU 300 still operates the DS3 interface in an unchan-
nelized fashion. Therefore, your DS3 network provider must supply you
with an unchannelized, point-to-point DS3.