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CHAPTER 2: Introduction
23
2.3 The CommPak
The Multiserver 5000 Commpak plug-in software
cartridge contains all of the Multiserver 5000’s
operating software. To add features and program
upgrades is simple—just change the cartridge.
NOTE: The Multiserver 5000 CommPak cartridge is
required for the unit to operate.
2.4 Expansion Modules
Plug in up to three of these data expansion
modules to suit your data networking needs; use any
combination. Add the five data channels on the
CCM, and the Multiserver 5000 can support up to
41 data channels (ten of which may be
synchronous).
MX215C—6-channel sync/async data expansion
module with EIA RS-232C connectors.
MX222C—6-channel async-only data expansion
module with EIA RS-232C connectors.
MX223C—12-channel async data expansion module
with RJ1D connectors. These connectors are DB25-
compatible when used with the correct adapter
cables.
MX224C—12-channel async data expansion module
with RJ1D connectors and integral line drivers;
compatible with EIA RS-422 and RS-423 standards.
NOTE: The expansion modules can only go in slots
B, C, and D on the Multiserver.
2.5 MS1 Voice/Fax Card
The Multiserver 5000 can support up to eight
voice/fax channels with single- or dual-channel
voice/fax expansion modules. Once these modules
are installed, they can be fully configured from the
same command facility used to control the data
channels. The network manager has a single point
of control for the entire network.
NOTE: To get eight voice/fax channels, use four
dual-channel cards (MX225C-2). The cards
will occupy all of the rear-panel slots
available for expansion modules (except for
the NMS module, which fits underneath the
CCM).
The voice/fax modules support all telephone
interface types, including E&M Type 1–5 for PBX
operation, KTS for key telephone systems and
handsets, and OPX for off-premise exchange
operation. The module generates ring and dial-tone
when required. There is no need to install external
signal converters.
These modules integrate voice, fax and data signals,
automatically switching the integrated software for
fax demodulation when it detects a fax signal and
resuming speech (voice) compression when it
identifies a voice signal.
2.6 MS1 56K CSU/DSU Module (MT150C)
Use the integral CSU/DSU module to interface the
Multiserver 5000 to a 56-Kbps digital line. The
Automatic Line Buildout (ALBO) feature makes
installation very simple: the CSU/DSU can
automatically adjust signal output according to line
distance (that is, the distance between the
CSU/DSU and the first repeater in the DDS line to
which it is attached). You won’t have to worry about
cable-length equalization problems during
installation.
2.7 MS RLB Module (MX229A)
The MS RLB Module is a Remote Ethernet LAN
Bridge. Once the RLB is installed, LAN bridge
traffic is integrated with voice and data traffic over
your leased line.
The RLB is a standard MAC-layer bridge and is
compatible with any ethernet protocol. The RLB
supports 802.1D Spanning Tree protocol to prevent
network loops. Bridge management can be done
through the Multiserver’s Command Facility.