Specifications

ESI Communications Servers Product Overview
13
Specifications and requirements
Capacities
Note: Refer also to “Capacities” in the “Advantage
Summary” (page 2).
Because they accept both digital and IP stations, and
due to the more flexible configurations this capability
allows, ESI Communications Servers possess station
capacities far beyond those of most legacy ESI platforms.
At the top of the list is the ESI-1000, which supports up
to 816 stations when configured appropriately.
1
Each IVC supports 24 channels, to which local IP
Phones or remotely installed IP Phones may be
connected. This is double the station capacity of any
port card that supports digital phones. Therefore, the
maximum station capacity can be achieved with
maximum use of IVCs and IP stations.
1
The next table depicts maximum trunk capacities
among the ESI Communications Servers. A certain
quantity of trunks in each model may be digital (T1
and/or PRI
2
), connected to the system via one or more
ESI digital line cards (DLCs).
3
Maximums
ESI-
1000
ESI-
600
ESI-
200
ESI-
100
ESI-
50
ESI-
50L
Trunks 240 168 84 42 35 16
Digital
(T1/PRI)
240 144 72 24 23 —
DLCs 10 6 3 1 1 —
The table below shows how many Esi-Link channels
may be configured in each ESI Communications
Server. This maximum is achieved by installing up to
the limit of Esi-Link IVCs in the system. Esi-Link
channels do not detract from the number of available
station or trunk ports.
4
Maximums ESI-1000 ESI-600 ESI-200 ESI-100
Esi-Link chs. 96 48 24 24
Esi-Link IVCs 4 2 1 1
System components
Each ESI Communications Server is comprised of one
Base Cabinet, with the capability of adding one to five
Expansion Cabinets, depending on model (for details,
see “Hardware description,” page 3).
1
See “Capacity constraints,” page 9.
2
PRI only on the ESI-50. The ESI-50L doesn’t support T1 or PRI.
3
See “Port cards supported,” page 14.
4
Except on the ESI-50 and its built-in IVC — on which, the more Esi-Link
channels (up to eight) are in use, the fewer local IP channels are
available. No more than 12 total IP channels may be in use.
• On the ESI-1000, ESI-600, and ESI-200 —
Each cabinet has its own power supply unit to
support the inserted port cards. Cabinets are
connected together through front-mounted cables.
• On the ESI-100, ESI-50, and ESI-50L —
Each system uses one power supply to support both
the Base Cabinet and the single available
Expansion Cabinet. Each requires a “piggyback”
method to mount the Expansion Cabinet onto the
Base Cabinet.
The Base Cabinet holds the main board, which controls all
call control and switching within the ESI Communications
Server. The main board also contains these integrated
connectors and components:
• Memory Module — A hard drive with improved
performance that contains all system programming
and configuration data, and pre-loaded voice prompts.
Each Memory Module provides voice storage at 64
kilobits/second — the industry's highest-quality
sampling rate.
• Network Services Processor (NSP) — The NSP
consists of a dedicated Motorola
®
ColdFire
®
processor and Ethernet port. The front-panel RJ-45
jack provides a 10/100Base-T connection to a site’s
LAN.
5
In its basic configuration, the NSP provides
remote access via Ethernet and the Internet for
system programming and maintenance. The NSP is
required for all LAN-based options, such as the
various VIP applications. On the ESI-50, the NSP
further allows programming of the built-in IVC.
• M3 memory back-up — Using RAID
6
-1 hard drive
technology, the Mirrored Memory Module (M3)
maintains system operation on a separate disk drive
in the event of a hard drive failure. M3 is required
when redundancy of system programming, speed-
dial entries, and voice mail messages and prompts
is desired. The M3 drive and interface constitute a
standard feature on the ESI-1000, and are optional
on the ESI-600 and ESI-200.
• On-board MOH and overhead paging inputs —
Connection of ancillary equipment is easy using the
system’s built-in jacks.
• Serial port — SMDR call detail data is output from
this port. Technicians connect their laptop
computers to this port to perform on-site
programming.
Also on the main board for the ESI-50 and ESI-50L are
a built-in 482 card; and the ESI-50 main board
additionally has a built-in IVC.
5
Local area network.
6
RAID means Redundant Array of Independent Drives.