STM SatLink 2900 User Manual

SatLink 2900

VSAT Indoor Unit

The SatLink 2900 is ideal for carrier
and ISP networks offering high­value broadband multi-media services, given its 50 Mbps of download IP throughput, QoS
for all media types, and TCP & HTTP Acceleration up to 10 Mbps per connection. Special
features such as: AES encryption, options for mobile configurations, an SCPC mode, and
built-in mesh networking support add to its versatility. Like its smaller cousin the SatLink 2000, it
also delivers the best spectral efficiency by using the international DVB-RCS2 standard
supporting QPSK, 8PSK, and 16QAM on TDMA carriers. The SatLink 2900 also has all the value­added IP networking features customers expect in SatLink networks. The SatLink 2900
supports various antenna options, with BUCs/LNBs in C, Ku, Ka, X, and EHF bands, including
STM’s own Ku Band transceivers.

The SatLink 2900 VSAT is a member of a family of SatLink products and systems from STM
enabling scalable, high-availability DVB-RCS & DVB-RCS2 networks including: VSATs, Hubs,
and Hub components, with value-added options for advanced data, voice, and video
networking via satellite. STM is the technology and market leader in DVB-RCS & DVB-RCS2
satellite networks delivering superior performance for telecom service providers, ISPs,
governments, and enterprises around the world. STM also offers integration, installation, 24x7
global support, and managed network services.

Features & Benefits

● High-Capacity with Mesh & SCPC Options

The SatLink 2900 delivers 40 Mbps of download IP
throughput for broadband services using either
Bandwidth-on-Demand or SCPC mode and the
highest spectral efficiency. Its mesh networking option
has low-blocking probability with its ability to receive 8
concurrent bursts.

● Plug & Play Integrated Design

The integrated hardware design and DiSEqC interface
greatly reduces installation errors while also reducing
installation time and complexity. The IDU monitors and
controls actual ODU power output allowing self-install.

● Scalable Management & Control

All management & control processes are engineered
for large networks, with automatic software updates
via multicast, efficient statistics collection, and fast,
easy network-wide reconfigurations, without site visits.

● Comprehensive IP Networking Features

SatLink delivers TCP and HTTP acceleration, secure
VPNs, NAT, and VLAN options, as well as a built-in
DHCP server and both unicast and multicast IP routing.

● AES-256 Encryption Built-in

Secures all user IP traffic transparently, with support for
traffic key per VSAT Group and automatic key updates.

● Bandwidth Efficiency at Many Levels

With its high-order modulation options, 16-state Turbo
Code FECs, ACM, header compression, burst size opti­mization, & intelligent capacity request algorithms, the
2900 delivers highly efficient broadband applications.

● ACM on Forward & Return Links

Adaptive Coding and Modulation (ACM) is performed
on DVB-S2 forward links and RCS2 return links (per burst),
enabling maximum two-way link availability. ACM is

integrated with SatLink’s QoS & Traffic Engineering so

key customer service levels can be met during fades.

● VSAT Groups, Traffic Engineering, and QoS

SatLink allows operators (and VNOs) to set up different
virtual capacity pools (with max and min rates) for
each QoS class used by each of a number of VSAT
Groups. This give operators more flexibility & control on

the service tiers they can offer. SatLink’s advanced

QoS features enable all data and media types to use
bandwidth-on-demand while key quality metrics, such
as jitter, delay, and throughput, are held within bounds
set for each VSAT Group and each individual VSAT.

● Power Options and BUC Power

Can use either AC or 24 VDC power feed. Internal
power to drive BUCs up to ~8 Watts. Automatic power
control from the hub simplifies installation and optimizes
operation and bandwidth use.

Specifications

SatLink 2900

VSAT Indoor Unit

Capacity

Throughput: Download: Up to 50 Mbps of IP packets;

Upload: Up to 5,000 packets per second
(varies with IP software features enabled)

IP QoS and Bandwidth-on-Demand

Traffic Classification: Multi-Field Classifiers using DSCP,

Protocol Type, IP Source Address, IP Destination Ad­dress, TCP/UDP Source or Destination Port; or 802.1p

Tx Queues: 7 priority queues per link and discard group
QoS: Four QoS Classes for Bandwidth-on-Demand:

Voice (VoIP), Video Conferencing (ViC), Critical Data
(CD), and Best Effort (BE)
Capacity Requests: Rate-based, Volume-based and
Combined modes (plus quasi-dynamic CRA options)

Compression & Encryption

RTP/UDP/IP headers: removes 38 bytes
UDP/IP headers: removes 14 bytes
MPE header (if used): removes 9 bytes on Tx (7 bytes on Rx)
TRANSEC: AES-256 encryption on Layer 2

IP Routing and IP Stack Support

Routing: Unicast and Multicast IP
Protocols: IPv4, IPv6*, UDP, TCP, ARP, ICMP, IGMPv2,

DHCP Server, DNS Cache, Ping, Telnet, SNMPv2c
Advanced Options: TCP & HTTP Acceleration up to 10
Mbps per session, NAT, GRE VPN Tunnels, VLANs

Management Interfaces

Local: RS-232 CLI
Remote: Telnet, SNMP v2c, Web GUI
Software Upgrade: Local, TFTP or multicast via satellite

Compliance

CE: Fully compliant with R&TTE Directive
DVB-RCS2: ETSI EN 301 545-2
DVB-RCS: ETSI EN 301 790; SatLabs
DVB-S/S2: ETSI EN 300 421 / ETSI EN 302 307
International: Country specific certifications

* anticipated for later SW release

TDM Receive (DVB-S2)

Symbol Rates: 1 to 45 Msps
MODCODs: (LDPC + BCH)

 QPSK: 1/4, 1/3, 2/5, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
 8PSK: 3/5, 2/3, 3/4, 5/6, 8/9, 9/10
 16APSK: 2/3, 3/4, 4/5, 5/6, 8/9, 9/10

FEC Frames: Normal (64 Kbit) and Short (16 Kbit)
Roll-off Factor: 20%, 25%, or 35%
Modes: ACM, VCM, CCM
IP Encapsulation: GSE or MPE/MPEG-TS

TDMA Transmit & Receive; SCPC Option

Symbol Rates (RTN):

125 ksps to 8 Msps (RCS2)
125 ksps to 4 Msps (RCS)

Symbol Rates (Mesh): 200 ksps to 3 Msps
MODCODs: (Turbo Codes FEC 8-state and 16-state)

 QPSK: 1/2, 2/3, 3/4, 4/5, 6/7 (DVB-RCS)
 QPSK: 1/3, 1/2, 2/3, 3/4, 5/6 (DVB-RCS2)
 8PSK: 2/3, 3/4, 6/7 (DVB-RCS extension)
 8PSK: 2/3, 3/4, 5/6 (DVB-RCS2)
 16QAM: 3/4, 5/6 (DVB-RCS2)

Adaptivity: ACM with ACS (RCS2), ACS (RCS)

(ACS = Adaptive Carrier Selection)

Mesh Rx: 8 simultaneous bursts, 44 MHz (RCS QPSK only)
IP Encapsulation: RLE (RCS2) or MPE/MPEG-TS (RCS)
SCPC Burst Mode: Dedicated carrier for Tx with full Constant

Rate Access (CRA), no capacity requests required

Physical Interfaces

Serial Port: RS-232, DB-9 (local management)
Ethernets: Two at 10/100/1000 Mbps, RJ-45
Tx (BUC) Interface: F-type 75 Ohm; 24 VDC at up to 4A,

and 10 MHz reference under software control

Tx Output: 950 to 1700 MHz ; - 35 dBm to +10 dBm
BUC control: Extended DiSEqC

Rx (LNB) Interface: F-type 75 Ohm; 13/18 VDC at up to 0.5A

Rx Input: 950 to 2150 MHz; -65 dBm to –25 dBm
LNB Control: 22 KHz DiSEqC 2.0

Front LEDs: Power, Error, Status, Tx, Rx, Ethernet Link
Power: AC or 24VDC (19-36 VDC)

TM

2.0

Electrical, Environmental & Physical

Power Supply: 100-240 VAC, 50-60 Hz, internal
Power Consumption: 17 W (IDU only)
Operating Temperature: -20 to 55 °C
Storage Temperature: -35 to 85 °C
Humidity: 20% to 90% non-condensing
Size: 44 x 24.5 x 4.45 cm (1U for standard rack)
Weight: 4 kg

www.stmi.com

STM Group, Inc. | 2 Faraday | Irvine, CA 92618, USA | T [phone] | FAX [phone]
STM Norway AS | Vollsveien 21 | 1366 Lysaker, Norway | T [phone] | FAX [phone]

All specifications and features subject to change without notice. SatLink and the STM logo are a registered trademarks of STM Group, Inc.
The DVB logo is a registered trademark of the DVB Project (www.DVB.org). DiSEqC is a trademark of Eutelsat.

Document #200287; Revision W - 130708 © 2013