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Introduction and Specifications

SpectraComm SRM-6 Overview

076R176-000

SC SRM-6 Multiplexer

1-5

Issue 1

Installation & Operation Manual

SRM-6 Applications

4-Wire Private Line Modem Application

The SRM-6 multiplexer is shown below in a typical 4-wire private line modem application with the
SC V.F28.8 modem and the SCM. On the DTE side, the SRM-6 acts as a DCE, multiplexing up six
DTEs into one aggregate. On the DCE side of the SRM-6, communication with the co-located
modem is configured to one of three aggregate data rates: 19.2, 28.8, or 33.6 Kbps. Local and
remote sites are connected via the 4-wire, leased private line. Management is conducted via a craft
or LAN/Telnet connection to the SCM.

Figure 1-3

SRM-6 Multiplexing in a Private Line Modem Application

DDS Network Application

The SRM-6 multiplexer is shown below in a typical DDS application with the SC 521A/S DSU and
the SCM. On the DTE side, the SRM-6 acts as a DCE, multiplexing up six DTEs into one aggregate.
On the DCE side of the SRM-6, communication with the co-located DSU is configured to one of
two aggregate data rates: 56 or 64 Kbps. Local and remote sites are connected over the 4-wire, DDS
line. Management is conducted via a craft or LAN/Telnet connection to the SCM.

Figure 1-4

SRM-6 Multiplexing in a Typical DDS Network

LOCAL SITE

4-Wire Leased

Private Line

DTE 1

DTE 2

DTE 3

DTE 4

DTE 5

DTE 6

SRM-6 MUX

SC V.F28.8

MODEM

SCM

REMOTE SITE

SRM-6 MUX

SC V.F28.8

MODEM

SCM

Up to
6 DTEs

OR

Craft

Telnet

SNMP

OR

Craft

Telnet

SNMP

RS-232 or

RS-530

RS-232

Up to
6 DTEs

DDS

Network

LOCAL SITE

DTE 1

DTE 2

DTE 3

DTE 4

DTE 5

DTE 6

SRM-6 MUX

SCM

REMOTE SITE

SRM-6 MUX

SCM

OR

Craft

Telnet

SNMP

OR

Craft

Telnet

SNMP

RS-232 or

RS-530

RS-232

SC 521A/S

DDS DSU

SC 521A/S

DDS DSU

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Содержание 076P054-001

Страница 1: ...The Best Connections in the Business General DataComm 6SHFWUD RPP 65009 Subrate Multiplexer Installation Operation Manual 076R176 000 Issue 1 June 2005 ...

Страница 2: ...cut USA 06770 Telephone 1 203 729 0271 Trademarks All brand or product names are trademarks or registered trademarks of their respective companies or organizations Documentation Revision History for P N 076R176 000 Related Publications REV is the hardware revision 000 001 etc VREF is the most current software version V600 is Version 6 0 0 In addition to the publications listed above always read Re...

Страница 3: ...ecifications 1 7 Chapter 2 Installation and Setup Setting Card Options 2 3 Installation Guidelines 2 4 Cable Connections 2 5 Connector Pinouts 2 6 Front Panel Controls and Indicators 2 10 Accessing the Shelf 2 11 Configuring a VT 100 Terminal Connection 2 11 Configuring a Telnet Connection 2 12 Chapter 3 SRM 6 Operation Diagnostics Basic Procedures 3 1 SRM 6 Configuration Menu 3 2 Aggregate Interf...

Страница 4: ...ii SC SRM 6 Multiplexer 076R176 000 Installation Operation Manual Issue 1 Table of Contents Firmware Download Menu 3 12 ...

Страница 5: ...ety and Precautions The CAUTION WARNING and DANGER statements that appear throughout this manual are intended to provide critical information for the safety of both the service engineer and operator and enhance equipment reliability The definitions and symbols for such statements comply with ANSI Z535 2 American National Standard for Environmental and Facility Safety Signs and ANSI Z535 4 Product ...

Страница 6: ...ts to fail ESD occurs when a person whose body contains a static buildup touches a computer component This product card may contain static sensitive devices that are easily damaged Proper handling grounding and precautionary ESD measures are essential Keep parts and cards in antistatic packaging during transport or when not in use When handling always use antistatic floorpads workbenchpads and an ...

Страница 7: ...ry Direct Support Repair GDC provides regular and warranty repair services through Factory Direct Support Repair at its U S headquarters in Naugatuck Connecticut This customer support organization repairs and refurbishes GDC products backed by the same engineering documentation and support staff used to build and test the original product Every product received for repair at Factory Direct Support...

Страница 8: ...Preface Support Services and Training vi SC SRM 6 Multiplexer 076R176 000 Installation Operation Manual Issue 1 ...

Страница 9: ...hat indicate operating status The mass termination connector at the front panel is cabled to an accessory panel which provides six EIA 232 E interfaces through DB 25 Female connectors wired as DCE The accessory panel mounts onto the rear of the SC 2000 shelf or can be installed at the front of the telco rack Refer to Figure 2 2 and accompanying paragraphs for complete front and rear panel connecti...

Страница 10: ... 2 3 4 5 6 SD RD SC2000 Shelf 1 SC2000 Shelf 2 Management Link NOTE For VF digital networks the SC V F 28 8 modem installs in slot 2 shown For DDS networks the SC 521A DSU installs in slot 2 For T1 networks the SC 553 DSU installs in slot 2 SCM Slot 1 SC V f28 8 33 6 MODEM Slot 2 SRM 6 Slot 4 Slot 3 Not Used SRM 6 INS TM ON AM SYNC ET 1 2 3 4 5 6 SD RD SCM CTRL SD RD SD RD NR ND TM ALM INS ON NR N...

Страница 11: ...slot addresses for alarms and statistical data on network elements and also polls one inactive slot By reducing the frequency at which it polls inactive slots the SCM card can continuously monitor as rapidly as possible and still discover newly installed SCM compatible equipment The SCM communicates continually with the SRM 6 and forwards its alarm traps to a designated controller Note Refer to th...

Страница 12: ...ork applications requiring aggregate data rates of 56 and 64 Kbps the SRM 6 gets its transmit timing from the DSU that is configured for Receive transmit timing Note For more information on configuring transmit timing in the modem or DSU refer to the corresponding manual listed inside the front cover of this document Figure 1 2 Terminal Timing in a SRM 6 System 4 Wire Leased Private Line DTE SRM 6...

Страница 13: ...twork Application The SRM 6 multiplexer is shown below in a typical DDS application with the SC 521A S DSU and the SCM On the DTE side the SRM 6 acts as a DCE multiplexing up six DTEs into one aggregate On the DCE side of the SRM 6 communication with the co located DSU is configured to one of two aggregate data rates 56 or 64 Kbps Local and remote sites are connected over the 4 wire DDS line Manag...

Страница 14: ...ggregate On the DCE side of the SRM 6 communication with the co located DSU is configured to one of two aggregate data rates 56 or 64 Kbps Local and remote sites are connected over the 4 wire T1 line Management is conducted via a craft or LAN Telnet connection to the SCM Figure 1 5 SRM 6 Multiplexing in a Typical T1 Network Up to 6 DTEs T1 Network LOCAL SITE DTE 1 DTE 2 DTE 3 DTE 4 DTE 5 DTE 6 SRM...

Страница 15: ... 33 6 56 or 64 Kbps Aggregate Interfaces RS 232 E RS 530 wired as DTE Channel Interfaces RS 232 E Channels 1 through 6 wired as DCE Channel Async Character Format 8 11 bits Channel Async Overspeed 1 TDM Framing Format Proprietary Alarm Reporting Aggregate No DCD No Frame Sync No Remote Frame Sync Channel No RTS No Remote CTS Tx Timing Channel DCE Send Timing ST or DTE Terminal Timing TT Aggregate ...

Страница 16: ...Introduction and Specifications Technical Specifications 1 8 SC SRM 6 Multiplexer 076R176 000 Installation Operation Manual Issue 1 ...

Страница 17: ... SpectraComm Subrate Multiplexer Card 076P054 001 SCM SpectraComm Manager Card Firmware Ver 5 91 or higher 058P150 002 SC V F28 8 33 6 SpectraComm V F28 8 33 6 Switched Network Private Line Card 060M012 001 SC 521A S SpectraComm 521A S DDS Data Service Unit 076P028 001 SC 553 SpectraComm 553 T1 Data Service Unit 076M016 010 SpectraComm 553 T1 Data Service Unit with Cascade 076M016 011 Filler Panel...

Страница 18: ...4 001 010C342 001 010C339 001 010D727 001 MS 2 Mod 2 Dual Modular 48 60 Vdc MS 2 DC Shelf 48 60 Vdc DPS 11 Power Supply Z1 S 16DRJ45 8 Slot Dual RJ45 2 Z3 S 16DB25 16 Slot DB25 Blank Panel Power Supply 010M055 001 010B152 001 041P050 001 010C342 001 010C339 001 010D727 001 MS 2 Mod 3 Dual Modular 220 240 Vac MS 2E Ac Export Shelf 220 240 Vac GPS 11E Power Supply Z1 S 16DRJ45 8 Slot Dual RJ45 2 Z3 ...

Страница 19: ... at the rear of the shelf for RS 232 or RS 530 mode Figure 2 1 shows jumper locations and the default RS 232 setting Note that option jumper X7 is reserved for future use and will not affect SRM 6 operation Note Refer to the corresponding manuals to set card options for the companion cards Figure 2 1 SRM 6 Option Jumpers 076P054 601 SRM 6 INS TM ON AM SYNC ET 1 2 3 4 5 6 SD RD RS232 X3 530 RS232 X...

Страница 20: ...nection can be made to any of the devices via the SCM front panel CTRL port Attach the Access Panel to the rear of the SC2000 shelf or at the front of the Telco rack with the two SC2000 shelves installed directly above it Note Additional cable and connectivity options for the SCM modem and DSU devices are described in their respective installation operation manuals Note Refer to the latest issue o...

Страница 21: ...VATE LINE REAR PANEL CONNECTIONS FRONT PANEL DETAILS MODEM DSU to SRM 6 AGGREGATE PORT B PIN 8 PIN 1 J G CRAFT PORT SC 2000 SHELF 2 BACK PANEL A B SCM SRM 6 E D C C SCM WAN PIN 1 8 7 6 5 4 3 2 1 D SCM DBU WAN PIN 1 SCM LAN PORT E SHELF 1 F BERG PIN CONNECTORS SC2000 shelf only D C E B J SCM CRAFT G MASS TERM DCE CHANNEL CONNECTOR PIN 1 PIN 32 PIN 33 PIN 64 DCE CHANNEL CONNECTOR CONNECTOR DETAILS A...

Страница 22: ...not used SCM Front Panel Craft Interface Interface J in Figure 2 2 The SpectraComm Manager card SCM provides a front panel craft CTRL port for local configuration and monitoring This EIA 232 interface is fixed as serial async 9600 baud 8 data bits 1 Start Stop No Parity For detailed pinout information refer to the SCM manual Access Panel Wired DCE Channels Interface H in Figure 2 2 The table descr...

Страница 23: ...nchronous or asynchronous For an aggregate rate of 19 2Kbps channel rates can be 1 2K 2 4K 4 8K or 9 6Kbps synchronous or asynchronous For an aggregate rate of 28 8 or 33 6Kbps channel rates can be 1 2K 2 4K 4 8K 9 6K or 19 2Kbps synchronous or asynchronous Table 2 5 Wired DTE Port Pinouts RS 232 Interface Port RS 530 Interface Port Pin No Signal Pin No Signal 2 SD 2 SDa 3 RD 14 SDb 4 RTS 3 RDa 5 ...

Страница 24: ...e 2 6 Management Link Cable Description Connector Signal Connects to P1 MAN IN Shelf 1 Upper Berg Pins P3 MAN OUT Shelf 1 Lower Berg Pins P2 MAN IN Shelf 2 Upper Berg Pins P4 MAN OUT Shelf 2 Lower Berg Pins SHELF 1 SHELF 2 To Shelf 1 Upper Berg Pins P1 P3 P2 P4 To Shelf 1 Lower Berg Pins SHELF DETAIL MANAGEMENT LINK CABLE SCM 1 SCM 2 SCM 1 PIN 1 PIN 1 SCM 2 ON OFF ON OFF MANAGEMENT CABLE DETAIL SC...

Страница 25: ... the slot it occupies in the SpectraComm Shelf Line address is always 1 and the network element is drop 0 In a point to point circuit the single remote unit is drop 1 In a multi point circuit the drop numbers of the remote units are selectable If the firmware is ever changed on the SRM 6 the nonvolatile memory retains the user defined configuration Timing In point to point TDM operation Internal o...

Страница 26: ...to the card RED indicates an alarm condition is in effect INS TM Steady GREEN LED indicates the card is in service OFF indicates the card is not in service RED indicates a test is in progress SYNC Steady GREEN indicates Aggregate In Sync OFF indicates Aggregate Not In Sync ET Future Use Ethernet status indicator SD 1 6 Steady GREEN indicates Channel Send Data Space OFF indicates Channel Send Data ...

Страница 27: ...nications parameters as follows data rate 9600 bps character format 1 start bit 8 data bits 1 stop bit 2 A management session is active as soon as you connect theVT 100 terminal cable to the SCM front panel CTRL port Initiating a VT100 Terminal Session 1 Connect a terminal to the SCM front panel CTRL port The Main Menu appears as shown Note Note that Main Menu items 1 IP Address and 2 Security are...

Страница 28: ...vity that is without pressing any key on the keyboard the unit will terminate the session 3 After the SCM verifies the login password the Shelf Inventory screen appears Figure 2 3 This is the point of access for any network element via its shelf slot number Note The SCM will display an alarm tag at the slot of any device with an alarm condition in effect Figure 2 3 Shelf Inventory Screen 4 Select ...

Страница 29: ... associated slot number to access the SRM 6 The SRM 6 Main Menu appears as shown below 3 Select the desired function from the SRM 6 Main Menu 4 At the submenus for each function select a menu item and then press Enter Use the Up Down arrow keys to scroll through the settings Save configuration changes or exit the screen without saving changes Each function is described in detail in this chapter 5 ...

Страница 30: ...rface Configuration Advances to the Aggregate Interface Configuration screen 2 Channel Interface Configuration Advances to the Channel Interface Configuration screen 3 Aggregate Alarm Configuration Advances to the Aggregate Alarm Configuration screen 4 Channel Alarm Configuration Advances to the Channel Alarm Configuration screen 0 Return to Main Menu Exits the Configuration menu and returns to th...

Страница 31: ...aggregate rate all previously enabled channels with no DTE RTS will be disabled They must be enabled again at the Channel Interface Configuration Screen Table 3 2 Aggregate Interface Configuration Selections Selection Description 1 Aggregate Rate Selects data rate 19 2 Kbps Total of all channels cannot exceed 16 8 Kbps 28 8 Kbps Total of all channels cannot exceed 26 4 Kbps 33 6 Kbps Total of all ...

Страница 32: ...ation 1200 bps is not available 4 Mode of Operation Sets asynchronous or synchronous operation for the selected channel 5 Async Character Length Sets the async character length for the selected channel as 8 bits 9 bits 10 bits or 11 bits includes Data Start Stop and Parity bits 6 TX Data Clock Sets the TX Data Clock for ST DCE Send Timing or TT DTE Terminal Timing 7 CTS Control Sets the CTS action...

Страница 33: ... Selections Selection Description 1 No Frame Sync For the aggregate interface sets the No Frame Sync alarm as a Masked or Reported alarm 2 No DCD For the aggregate interface sets the No DCD alarm as a Masked or Reported alarm 3 No Remote Frame Sync For the remote aggregate interface sets the No Remote Frame Sync alarm as a Masked or Reported alarm 4 All Alarms Control Globally selects all aggregat...

Страница 34: ...atus of all interface signals without masking When alarm conditions are set as Reported and the alarm is active the SRM 6 will send a trap via the SCM Table 3 5 Channel Alarm Configuration Selections Selection Items Description 1 through 9 and A through C No Remote CTS For the selected channel interface sets the No Remote CTS alarm as a Masked or Reported alarm No RTS For the selected channel inte...

Страница 35: ...ath Special Considerations For this loopback a timing source is required which can be supplied by DTE TT timing or by a device connected to the aggregate DTE port for ST timing Table 3 6 Diagnostics Selection Description 1 Aggregate Loopback Sets the unit to Activate the aggregate loopback test or Terminates a test in progress Data is sent back to the connected DTE S Save Saves the setting to the ...

Страница 36: ... To terminate the test in progress type 1 to select the Aggregate Loopback field then press Enter Use the UP arrow key to highlight the Terminate option then press Enter 5 Type S to save the configuration to the unit This stops the test in progress Figure 3 1 Aggregate Loopback Data Path Note If erros are injected from the local DTE central site the errors are received on the local DTE and are als...

Страница 37: ...f the refresh interval Table 3 7 Alarm Monitor Screen Selection Description Settings Aggregate Interface Alarms No DCD Masked Active or Inactive An active alarm indicates there is no DCD on the aggregate port No Frame Sync Masked Active or Inactive An active alarm indicates the device is unable to acquire framing No Remote Frame Sync Masked Active or Inactive An active alarm indicates the remote d...

Страница 38: ... refresh with updated status information every two seconds When you type 0 and press Enter to return to the Main Menu the system will process that command at the end of the refresh interval Table 3 8 Interface Status Screen Selection Description Aggregate Interface Status CTS Select ON or OFF Reflects aggregate control leads DSR Select ON or OFF Reflects aggregate control leads DCD Select ON or OF...

Страница 39: ... using its current configuration 2 Reset to Factory Defaults Causes all options in the SRM 6 to return to their factory default settings 3 Firmware Download Activates the download function described below 4 Copy Active file Makes a copy of the Active firmware and stores it as Standby firmware 5 Restore Active file Makes a copy of the Standby firmware stores it as Active firmware and then reboots t...

Страница 40: ...ch stored revision of firmware has been unzipped and is currently operating in the SRM 6 Download Mode Read only display of the unit s response to an imminent firmware download This Enable Disable setting remains in effect until changed by the user 1 Disable All Downloads Commands the unit to reject any imminent download of firmware 2 Enable Downloads and Store Zipped Commands the unit to accept a...

Страница 41: ... Mode as 2 or 3 Either of these selections will automatically enable all downloading to the unit 2 Initiate a TFTP session using the IP of the SCM 3 At the TFTP prompt type bin and then press Enter This causes the transfer to take place in binary mode 4 Type put firmware filename address product code and the press Enter key to initiate the actual transfer The firmware filename is provided with the...

Страница 42: ...s Formats SSLLDDpp pp VMMmmbbv ppp 2 digit major revision level 2 digit minor revision level 2 digit code correction level 3 digit product code 107 for SRM 6 units 2 digit Shelf Slot in hex 01 20 32 decimal 2 digit Line default 01 2 digit Drop default 00 5 character product code 01 07 for SRM 6 units Firmware Filename Format Address and Product Code Format Single Unit ...

Страница 43: ......

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