
CX900e Hardware Reference Manual
1-6
3006M100-002
wiring. The RJ-45 connector provides Token Ring connection to networks using
unshielded, twisted-pair (UTP) wiring. The card can be configured for either 4 or
16 Mbps operation.
Ethernet I/O
Card
The Ethernet I/O card features MAC (Media Access Control) addressing, and
status and control registers that provide it with bridge/router functionality. The
card is equipped with one 10BaseT port and one Attachment Unit Interface (AUI)
port.
Fast Ethernet
LAN I/O Card
The Fast Ethernet LAN I/O card enables the CX900e to connect to either a
10BaseT or 100BaseTX Ethernet LAN. The Fast Ethernet LAN I/O card features
auto-sensing of data transmission speeds of 10 Mbps or 100 Mbps.
ISDN BRI-U I/O
Card
The ISDN BRI-U I/O card enables the CX900e to exchange data over an
Integrated Services Digital Network (ISDN) as a Basic Rate Interface-U (BRI-U
connecting to the PSTN. The Basic Rate Interface features 2 Bearer channels of
64Kbps each and one Data channel of 16 Kbps.
ISDN BRI-S/T
I/O Card
The ISDN BRI-S/T I/O card enables the CX900e to exchange data over an ISDN
or QSIG BRI-S/T interface. The ISDN BRI-S/T I/O card is required in locations
where the telco or PBX supplies Network Termination 1 (NT1).
DDVC Card
The Dual Digital Voice Compression (DDVC) card is used in conjunction with the
ISDN BRI-S/T I/O card to provide two compressed voice channels to the
CX900e. The card uses a C31 Digital Signal Processor (DSP) to provide voic
compression and signaling.
ISDN BRI S/T
Digital Voice
I/O Card
The Basic Rate Interface (BRI) Digital Voice card enables the CX900e to transmit
data and compressed voice over a BRI-S/T to a QSIG or ISDN interface. The card
uses a C54 Digital Signal Processor (DSP) to provide voice compression and
signaling.
V.34 Modem
Card
The V.34 Modem I/O card can be used as a dial backup for connections to a
network or for establishing simple dial-up connections to the PSTN. The card acts
as an originate or answer modem using a variety of protocols and operating at
speeds up to 28.8 Kbps.
56K/64K CSU/
DSU Card
The CSU/DSU cards enable the CX900e to exchange data over digital networks.
The cards feature 56K, switched-56, and 64K Clear Channel capabilities.
T1/E1 I/O Card
The T1/E1 I/O card provides a non-channelized interface, and enables the
CX900e to connect to a full or fractional public T1/E1 network.
Summary of Contents for CX900e
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