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Star Microwave SM Cirius LM User Manual

Digital microwave radio indoor unit (idu) / outdoor unit (odu) hybrid ip/tdm ethernet + 16 t1
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SM Cirius LM
Digital Microwave Radio
Indoor Unit (IDU) / Outdoor Unit (ODU)
Hybrid IP/TDM
Ethernet + 16 T1
User's Manual
Cirius LM User Manual 2016
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  • Page 1 SM Cirius LM Digital Microwave Radio Indoor Unit (IDU) / Outdoor Unit (ODU) Hybrid IP/TDM Ethernet + 16 T1 User’s Manual Cirius LM User Manual 2016 Page 1...

  • Page 2: Table Of Contents

    Section Page PRODUCT DESCRIPTION Overview Front Panel Interfaces 1.2.1. T1/E1 Ports 1.2.2 Ethernet Ports 1.2.2.1 Ethernet User Ports 1.2.2.2 Ethernet Management Ports 1.2.2.3 Ethernet Port Front Panel LEDS 1.2.3 Overhead/Alarm Interface 1.2.3.1 Auxiliary Serial Channel 1.2.3.2 Form-C Relay Outputs 1.2.3.3 Bi-Level Alarm Inputs 1.2.4 Serial Console Interface...
  • Page 3 SNMP Alarms Configuration Tab 2.1.12 System Tab 2.1.13 2.1.13.1 Version Information Network Settings 2.1.13.2 2.1.13.3 Clock / Other Status System Users 2.1.13.4 Asset Tags 2.1.13.5 Firmware Update 2.1.13.6 Reboot 2.1.13.7 2.1.13.8 Visual Modulation Tool SNMP SNMP Traps 2.1.14 SNMP MIB 2.1.15 Telnet Serial Console...

  • Page 4: Product Description

    1. Product Description 1.1. Overview The radio system serves as the Indoor Unit of a point-to-point microwave radio system designed for microwave band operation with Outdoor Units (ODUs). Key features and functions are as follows: • Line interface and conditioning functions necessary for transport of none, four or sixteen PDH T1/E1 channels •...
  • Page 5 Figure 3 Front Panel Legend: 1. DC Power Input: Unit accepts DC power 20 to 60 V. 2. Standard 5 x 20mm fuses 3. ODU interface (N-type connector) 4. Front panel Power, Alarm and Fault indicators: See section 1.2.5 for detailed discussion. 5.
  • Page 6 Legend: 1. DC Power Input: Unit accepts DC power 20 to 60 V. 2. ODU status LEDs 3. ODU interfaces (N-type connectors) 4. Front panel Power, Alarm and Fault indicators: See section 1.2.5 for detailed discussion. 5. Serial Console Interface: RS-232 interface supports text menu command line interface. Used for development and advanced diagnostics only.

  • Page 7: Front Panel Interfaces

    1.2. Front Panel Interfaces 1.2.1. T1/E1 Ports The T1/E1 ports are 8-pin modular jacks with standard RJ-48 pinouts as shown in Figure 5 and Table 1 below. Transport mode is software configurable to support zero to four T1 channels or zero to four E1 channels (with the remainder of the capacity allocated to Ethernet transport).

  • Page 8: Ethernet Ports

    1.2.2. Ethernet Ports 1.2.2.1. Ethernet User Ports The two Ethernet user ports (Ethernet ports 1 and 3) provide 10/100BaseT interfaces with standard RJ-45 pinouts. When the IDU is properly configured, the IDU provides transport of Ethernet frames ingressed at these ports over the link to the far side radio.

  • Page 9: Overhead/Alarm Interface

    1.2.3. Overhead/Alarm Interface The signals associated with auxiliary serial channel, relays and alarms are provided over a DB-26 interface with connector pinouts and signal assignments as defined in Figure 6 and Table 3 below. Figure 6 Pinout for High-density DB-26 Connector (as seen looking at front panel) Cirius LM User Manual 2016 Page 9...

  • Page 10: Auxiliary Serial Channel

    Signal Name Description Chassis Ground Ground Aux Serial Receive Aux Serial Channel Rx Data (to IDU) Unused Unused Chassis Ground Ground Unused Unused Relay 2 COM Relay 2 COM Relay 1 NC Relay 1 NC pin Aux Serial Transmit Aux Serial Channel Tx Data (from IDU) Chassis Ground Ground Unused...

  • Page 11: Form-C Relay Outputs

    1.2.3.2. Form-C Relay Outputs The IDU includes two Form-C relays. All three pins of each of the two relays are brought out to the Overhead/Alarm interface. The function of the relays as programmed by default in the factory are as shown in Table 4. Other functions can be made available by request.

  • Page 12: Front Panel Leds

    Pin # Signal Name Direction Signal Description No connection Transmit Data (from IDU) Receive Data (to IDU) No connection Ground No connection No connection No connection No connection Table 5 CLI Connector Pinout 1.2.5. Front Panel LEDs Green Power LED: Indicates DC power is applied. Yellow Alarm LED: Indicates loss of IDU-ODU command/telemetry link.

  • Page 13: Odu Interface

    1.2.7. ODU Interface The N-Type ODU interface multiplexes the following signals: • DC power (-21 to -60V) • Transmit modulated IF signal (to ODU) at center frequency 350 MHz and output power -2 dBm to +3 dBm • Receive modulated IF signal (from ODU) at center frequency 140 MHz with input IF power between -7 dBm and -25 dBm •...

  • Page 14: Front Panel Interfaces

    1.2.7. ODU Interface The N-Type ODU interface multiplexes the following signals: • DC power (-21 to -60V) • Transmit modulated IF signal (to ODU) at center frequency 350 MHz and output power -2 dBm to +3 dBm • Receive modulated IF signal (from ODU) at center frequency 140 MHz with input IF power between -7 dBm and -25 dBm •...

  • Page 15: Ethernet Ports

    1.3.2. Ethernet Ports 1.3.2.1. Ethernet User Ports The two Ethernet user ports (Ethernet ports 1 and 3) provide 10/100BaseT interfaces with standard RJ-45 pinouts. When the IDU is properly configured, the IDU provides transport of Ethernet frames ingressed at these ports over the link to the far side radio.

  • Page 16: Overhead/Alarm Interface

    1.3.3. Overhead/Alarm Interface The signals associated with auxiliary serial channel, relays and alarms are provided over a DB-15 interface with connector pinouts and signal assignments as defined in Figure 9 and Table 8 below. Figure 9 Pinout for High-density DB-15 Connector (as seen looking at front panel) Signal Name Description Alarm Output 1...

  • Page 17: Form-C Relay Outputs0

    1.3.3.2. Form-C Relay Outputs The IDU includes two Form-C relays. All three pins of each of the two relays are brought out to the Overhead/Alarm interface. The function of the relays as programmed by default in the factory are as shown in Table 9. Other functions can be made available by request.

  • Page 18: Front Panel Idu Status Leds

    Figure 10 Pin Definitions for Female 9 Pin Sub-D Connector (as seen by looking at front panel) Signal Name Description Direction No connection Transmit Data (from IDU) Receive Data (to IDU) No connection Ground No connection No connection No connection No connection Table 10 CLI Connector Pinout 1.3.5.

  • Page 19: Dc Power

    1.3.7. DC Power DC Power is provided to the terminal (IDU and ODU) via a two terminal connector. The IDU accommodates -21 to -60 VDC. (Positive polarity versions are available. Contact factory for more information.) For proper operation, connect DC power interface to external power supply as follows: •...

  • Page 20: Terminal Management Interfaces

    2. Terminal Management Interfaces The IDU supports management over a TCP/IP network via a web GUI interface, telnet, or SNMP. Network Settings must first be properly configured by means of the System/Network Settings page described in Section 2.1.13.2. Once a link is established between two terminals, both terminals may be managed over TCP/IP from one side of the link, provided that the Modem Configuration (discussed in Section 2.1.4) includes allocation of Ethernet capacity over the link.
  • Page 21 Figure 11 Web GUI Login Page Cirius LM User Manual 2016 Page 21...

  • Page 22: Main Status Bar

    User Name Password Access admin Password is defined uniquely All functions are accessible for Starmicrowave. This password is supplied with the IDU and can be changed when logged in as “admin” via the System Tab (see Section 2.1.12.4). Admin access level is intended for use only by Starmicrowave, not the end customer/operator.
  • Page 23 • RSSI: Received Signal Strength Indicator (ODU RF received signal power) in dBm. For 1+1 protected units, the RSSIs of both the Primary and Standby ODUs are displayed. Figure 12 Web GUI Main Status Bar and Link Status Tab Cirius LM User Manual 2016 Page 23...

  • Page 24: Link Status Tab

    Figure 13 Web GUI Main Status Bar and Link Status Tab 2.1.3. Link Status Tab The Link Status Tab, shown in Figure 12 for an unprotected unit and in Figure 13 for a 1+1 protected radio system, presents link status information for both near-side and far-side terminals.
  • Page 25 • Demod SNR: Demodulator received signal-to-noise ratio • Demod Lock: Green status indicates demodulator is correctly locked onto the received signal; red indicates unlocked state. If supported, 1+1 Protected Mode may be enabled and disabled by means of a radio button in the Protected Mode pane (x16 T/E1 only). When enabling or disabling protected mode, designate a Primary ODU or Active ODU using the pulldown.

  • Page 26: Modem Tab

    2.1.4. Modem Tab The Modem Tab, shown in Figure 14, presents key modem status and a configuration control interface. To change the Modem Configuration, select the desired Bandwidth mode, Modulation type, and Transport mix (Ethernet + E1, Ethernet + T1 or Ethernet only) from the pull-downs. A filtered list of available modes then appears in the box below.
  • Page 27 Figure 14 Web GUI Modem Tab Cirius LM User Manual 2016 Page 27...

  • Page 28: Link Quality Tab

    2.1.5. Link Quality Tab The Link Quality Tab, shown in Figure 15, presents key link quality metrics. • Errored Codewords: Cumulative number of errored received FEC codewords/total cumulative received codewords • Errored Frames: Cumulative number of errored received frames/total cumulative received frames (a frame consists of a number of interleaved FEC codewords) •...
  • Page 29 Figure 15 Web GUI Link Quality Tab Cirius LM User Manual 2016 Page 29...

  • Page 30: Telco Lines Tab

    2.1.6. Telco Lines Tab The Telco Lines Tab, shown in Figure 16, presents information on the E1/T1 telco interfaces. For each active line, Signal Loss status, Alarm Indication Status (AIS), and Driver Failure Mode (DFM) status is provided. Note that status is provided only for the number of active lines selected on Modem tab.
  • Page 31 Figure 16 Web GUI Telco Lines Tab (shown T/E4) Cirius LM User Manual 2016 Page 31...

  • Page 32: Ethernet Tab

    2.1.7. Ethernet Tab The Ethernet Tab, shown in Figure 17, presents key status and configuration control interface for the internal IDU Ethernet Switch. See Section 4 for a detailed discussion of Ethernet switch features. The selected Ethernet configuration can be saved to non-volatile memory and applied upon the next power-on by clicking Apply &...
  • Page 33 Figure 17 Web GUI Ethernet Tab Cirius LM User Manual 2016 Page 33...

  • Page 34: Odu Tab

    2.1.8. ODU Tab The ODU Tab, shown in Figure 18, presents key ODU status and a configuration control interface. The selected ODU configuration can be saved to non-volatile memory and applied upon the next power-on by clicking Apply & Save. Click Apply to apply the settings without storing to power-on settings.
  • Page 35 Figure 18 Web GUI ODU Tab Cirius LM User Manual 2016 Page 35...
  • Page 36 2.1.9. Logged Data Tab The Logged Data Tab, shown in Figure 19, presents history of logged data, along with the ability to export the logged data table as a CSV file. Entries are updated every 15 minutes. Individual data fields may be added or removed by means of the Data checkboxes.

  • Page 37: Event Log Tab

    2.1.10. Event Log Tab A history of system event log messages is available via the Event Log Tab, as shown in Figure 20. The messages that appear in the log are listed in Table 12. Pressing the Clear System Log button results in the permanent deletion of existing log entries.
  • Page 38 Figure 20 Web GUI Event Log Tab Cirius LM User Manual 2016 Page 38...

  • Page 39: Alarms Tab

    2.1.11. Alarms Tab A summary of the radio’s alarm status is available via the Alarms Tab, as shown in Figure 21. 2.1.11.1. IDU Alarms If the Demod Lock LED is green, the receiver is operational. Both nearand far-side Demod Lock are necessary for bi-directional data transfer across the wireless link. The Software Status indicator turns red if the Modem Supervisor is not executing normally.

  • Page 40: Temperature Status

    2.1.11.4. Temperature Status The Temperature Status panel displays IDU, Primary ODU, and, in the case of 1+1 protected units, Secondary ODU temperature readings. Some ODUs do not support temperature queries, in which case temperature indicators will not appear on the display. The IDU has two temperature sensors, one on the modem mainboard and a second on the power supply board.
  • Page 41 SNMP can be enabled by means of a radio button in the SNMP Alarms Configuration pane. A SNMP Server IP address must be specified. To send periodic alarm traps or a heartbeat, check the appropriate box and specify an update interval in minutes. The Alarm and Heartbeat Object Identifiers (OIDs) are displayed to the right of the update interval.

  • Page 42: System Tab

    2.1.13. System Tab The System Tab provides access to a variety of System-related information. 2.1.13.1. Version Information Selecting Version Information on the System Tab displays key hardware and software version data, as shown in Figure 23. Figure 23 Web GUI System/Version Information Tab Cirius LM User Manual 2016 Page 42...

  • Page 43: Network Settings

    2.1.13.2. Network Settings Selecting Network Settings on the System Tab displays the MAC address of the near side Ethernet switch, the IP address of the IDU’s modem on the far side, and the IP address of the web browser, as shown in Figure 24. See Section 3.2 for a detailed discussion of the Network Settings configuration.

  • Page 44: Clock / Other Status

    2.1.13.3. Clock / Other Status Selecting Clock / Other Status on the System Tab, shown in Figure 25, provides display and setting capability for the IDU’s (battery-powered) real-time clock, as well as system temperatures and IDU host processor software uptime and load information.

  • Page 45: System Users

    2.1.13.4. System Users Selecting System Users on the System Tab provides an interface allowing the operator to set user passwords, as shown in Figure 26. Access on this page is determined by login authentication level, as discussed in Section 2.1.1. Since the password display is hidden, it must be entered twice to assure the intended value is captured.

  • Page 46: Asset Tags

    2.1.13.5. Asset Tags Selecting Asset Tags on the System Tab provides an interface allowing the operator to define Asset Tag ID and Name, as shown in Figure 27. Asset tags can be used by the network operator to define and track network assets remotely. Clicking on the Save Asset Tags button stores these fields in non-volatile memory on the IDU.

  • Page 47: Firmware Update

    2.1.13.6. Firmware Update The Firmware Configuration option on the System Tab, as shown in Figure 28, provides an interface allowing the operator to perform IDU firmware updates, as well as save and re-install system configuration settings. Note that following a firmware update, the IDU will automatically apply the Power-on settings previously saved for the modem configuration, ODU configuration, and Ethernet configuration, as well as retain terminal network settings and user passwords.

  • Page 48: Reboot

    2.1.13.7. Reboot Selecting Reboot on the System Tab (see Figure 29) causes the management processor of the IDU to reboot. Before pressing the Reboot System button to reboot the unit, please heed the warnings in the System Reboot pane. Note that following a firmware update, the IDU will automatically apply the Power-on settings previously saved for the modem configuration, ODU configuration, and Ethernet configuration.

  • Page 49: Visual Modulation Tool

    2.1.13.8. Visual Modulation Tool The IDU also provides a tool to see whether the link modulation is clean with little or no interference, or that there is a path problem which manifests itself in a distorted Quadrature Modulation screen. Refer to the two examples below (Figures 30 and 31) that depict a good and bad signal reception Figure 30 28Mhz_64QAM_highSNR_SM Figure 31 28Mhz_64QAM_LowSNR_SM...

  • Page 50: Snmp

    SNMP 2.1.14. SNMP Traps The IDU can be configured to send SNMP traps to a trap receiver if it is accessible over the IP network. SNMP traps are configured via the Alarm tab of the web GUI interface, as discussed in Section 2.1.11. Two traps can be separately configured: 1) an Alarm trap that is sent periodically only when an alarm condition exists for the terminal, and 2) a Heartbeat trap that is sent periodically to indicate that the terminal is alive.

  • Page 51: Snmp Mib

    16. IDU Software Alarm (1 = alarm, 0 = no alarm) 17. ODU Alarm (1 = alarm, 0 = no alarm) 18. Standby ODU Alarm (1=alarm, 0=no alarm) [applicable for 1+1 protected*] 19. IP Address 20. Modem transmit state (0 = unconfigured, 1 = configured, 2 = operating, 3 = error) 21.

  • Page 52: Setup And Operation

    3. Setup and Operation 3.1. Basic Link Setup To setup a link for operation, proceed with the following steps at each terminal: 1. Prior to connecting DC power to the IDU, connect the IDU and ODU via a 50 ohm coaxial cable. LMR-400 or equivalent is recommended. 2.

  • Page 53: Management Interface Network Configuration Considerations

    3.2. Management Interface Network Configuration Considerations 3.2.1. IDU Network Configurations The IDU supports manual (static) network configuration settings (DHCP is not supported at this time). All IDUs are factory configured with default static network settings as stated in Section 3.1. These static Network Settings can changed by changing the entries on the System / Network Settings page of the GUI interface (see Section 2.1.13.2).
  • Page 54 If the IDU and computer are connected directly or locally through a simple LAN or unrouted network, the computer Network Settings will need to be configured manually, as shown in Figure 31 below Figure 31 Configuring an IP Address IMPORTANT NETWORK CONFIGURATION WARNINGS: Note that if no Gateway exists on the network, insure that no default gateway IP Address is entered in the network settings.
  • Page 55 Also note that if testing a link in a laboratory environment, only one IDU can be connected to a LAN via an Ethernet cable at any one time. If both IDUs are connected to the same LAN via Ethernet and the link is closed, a loop is formed which will disrupt the network.

  • Page 56: Firmware Update

    3.3. Firmware Update The IDU’s firmware, including software running on the embedded microprocessor as well as the FPGA-based modem and related signal processing, can be remotely updated. An outline of the instructions for updating firmware are as follows: 1) Setup TFTP server and associated firmware upgrade files. Detailed instructions are provided below for installing (freeware) Solarwinds TFTP server on a standard PC.
  • Page 57 Figure 32 Starting the TFTP Server From the TFTP Sever menu, ensure “Transmit Only”, or “Transmit and Receive files” is checked on the “security” tab from the File- >Configure menu as shown in Figure 33. Cirius LM User Manual 2016 Page 57...
  • Page 58 Figure 33 Configuring the TFTP Server Delete all existing files (if any) from C:\TFTP-Root • Copy all files provided in TFTP-Root folder from the firmware update zip file to C:\TFTP-Root of the external PC. Note that the TFTP-Root folder will be created automatically by the TFTP application when it is started (so the TFTP application must be started prior to this step).

  • Page 59: Step 2 - Establish Ethernet Connection To Idu

    Figure 34 Configuring the TFTP Server 3.3.2. Step 2 – Establish Ethernet Connection to IDU Option 1: IDU connected to PC via LAN: • Connect one of the IDU’s Ethernet Management ports to the LAN. All other IDU Ethernet ports must be disconnected. •...
  • Page 60 Figure 35 Firmware Update Window • The update process will take from 3 to 5 minutes. • DO NOT INTERRUPT OR POWER-DOWN DURING UPDATE. • The status of the firmware installation will be updated on the GUI during this time. •...
  • Page 61 • During the reboot, the page will display “Lost IDU Communication” and all status indicators will go red as shown in Figure 36 below. Figure 36 Firmware Update Window while Update in Progress Cirius LM User Manual 2016 Page 61...
  • Page 62 • When the screen shown in Figure 37 below appears, click on “Click here” to refresh browser. Figure 37 Firmware Update Window after Update Completion Cirius LM User Manual 2016 Page 62...

  • Page 63: Ethernet Features Overview

    4. Ethernet Features Overview The platform includes a multi-port Layer 2 Ethernet switch providing interconnect between the four front panel ports, the local (IDU internal) CPU port and the radio port. The switch is capable of providing normal, unrestricted address learning and frame forwarding functions between these six ports.

  • Page 64: Port Based Qos Priority Features

    tagged. VLAN tags added by the switch are removed upon egress from the link. Therefore, frames that ingress to the switch with a single VLAN tag egress from the terminal with their original VLAN tag intact. However, frames that ingress to the link double-tagged will have their 2 tags removed.

  • Page 65: Port Based Rate Limiting

    port also plays a role in determining what configurable rate limits are available to that ingress port. (See the Port Based Rate Limiting section below.) The IDU’s Ethernet Switch includes four separate output queues for each egress port, one for each definable priority level. The IDU allows the selection of one of two scheduling modes, a strict priority scheme or a fair weighted priority scheme, which determines how the frames are allowed to exit from the given output port.

  • Page 66: Ethernet Flow Control

    Port QoS Priority Settable Ingress Rate Limits Assignment 128Kbps, 256Kbps, 512Kbps, 1Mbps, 2Mbps, 4Mbps, 8Mbps or Not Limited 128Kbps, 256Kbps, 512Kbps, 1Mbps, 2Mbps, 4Mbps, 8Mbps, 16Mbps or Not Limited 128Kbps, 256Kbps, 512Kbps, 1Mbps, 2Mbps, 4Mbps, 8Mbps, 16Mbps, 32Mbps or Not Limited 128Kbps, 256Kbps, 512Kbps, 1Mbps, 2Mbps, 4Mbps, 8Mbps, 16Mbps, 32Mbps, 64Mbps or Not Limited Table 14 Configurable Port-based Ingress Rate Limits...

  • Page 67: Link Aggregation Support

    5. Link Aggregation Support 5.1. Overview Link aggregation (LAG) allows support of transport capacities in excess of 100 Mbps for a single LAN, by bonding two of the 100-BaseT Ethernet ports. The IDU supports a single LAN with an Ethernet throughput in excess of 100 Mbps via intervening LAG-enabled switches that support Link Aggregation Control Protocol (LACP).

  • Page 68: Cisco Switch Configuration

    The factory has verified that LAG functions properly with Cisco/Linksys SLM2008 8-port Gigabit Smart Switches on each end of the link. The Ethernet switch integrated into the IDU is double-clocked, which allows Ethernet transmissions across the link in excess of 100 Mbps. IDU Ethernet ports 1 and 3 are designated as the Ethernet data ports, and ports 0 and 2 act as management ports.
  • Page 69 Figure 40 Cisco Switch Port Settings Page 7. Navigate to Port->LACP Settings. Make sure there are no active connections on switch ports 1 and 2. 8. Select Enable LACP for Ports 1 and 2 and press Save Settings, as shown in Figure 41.

  • Page 70: Configuration

    5.2.2. Configuration VLANs must be enabled on the Ethernet switch of both IDUs in order for aggregated traffic to traverse the wireless link properly. Link Aggregation can be enabled and disabled on the IDU by means of a pulldown on the Ethernet tab in the web GUI, as shown in Figure 42.

  • Page 71: Native Tdm/Ip Transport Architecture Overview

    6. Native TDM/IP Transport Architecture Overview 6.1. Overview One of the key benefits of Star Microwave Cirius LM point-to-point microwave radio Indoor Unit (IDU) is the ability to transport native TDM data along side Ethernet frame data with minimal latency and without degrading TDM jitter performance.
  • Page 72 Cirius LM User Manual 2016 Page 72...

  • Page 73: 1+1 Protection

    7. 1+1 Protection 7.1. Introduction The radio in its standard configuration is an unprotected (1+0) IDU with a single N- type connector interface to connect to a single ODU. An optional hot standby protected (1+1) mode configuration is available, whereby two identical ODUs, a primary and a secondary, are connected to a single IDU via two N-type connector interfaces.
  • Page 74 2) Transmit Path Failure: In the event of a transmit path failure, the transmitter is switched to the standby ODU. The receive path is unaffected. 3) Receive and Transmit Path Failure: In the event that failure of both the receive and transmit paths are detected, or total failure of an ODU is detected (e.g., demod lock loss coupled with loss of IDU-ODU communication), all operations are switched to the standby ODU.
  • Page 75 Cirius LM User Manual 2016 Page 75...

  • Page 76: Cirius X4 And X16 Detailed Specifications

    8. Cirius x4 and x16 Detailed Specifications Full specifications for the platform are detailed below. All parameters apply to both the x4 and the x16 unless otherwise stated. GENERAL Configuration 1U high, 19” rack mounted IDU, designed for weather protected indoor use Dimensions 4.2 x 43.6 x 27.5 cm (1.65 x 17.2 x 10.8 in) Weight...
  • Page 77 Modulation Net Date (bps) Eb/No (dB) Sensitivity Threshold for BER QPSK 1.81 8.8 dB of 10 8PSK 2.72 12.2 dB (RS-encoded with 16QAM 3.62 12.3 dB T=12 32 QAM 4.53 14.4 dB errorcorrecting) 64 QAM 5.44 16.9 dB 128 QAM 6.34 19.4 dB 256 QAM...
  • Page 78 Channel transmission over the link on Overhead / Alarm Interface connector • Customer configurable, typically 64 kbps • Single DB15 (x16) or DB26 (x4) connector Alarms • Two Form-C general purpose relays • x16: Four TTL alarm bi-level inputs, two TTL alarm outputs •...
  • Page 79 PROTECTION Default • 1+0 unprotected, operating with single ODU (1 x N- Configuration type IF connector) Protected Options • Simple 1+1 hot-standby protection (single Rx (x16 version only. demodulator with non-hitless switchover) supporting Contact factory for single, space and frequency diversity availability) •...

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