Technical Specifications
Operations Interfaces
Overview
............................................................................................................................................................................................................................................................
Purpose
This section presents the operation interfaces that are required to support technician access to the system and allow alarms and status information generated by the system to be reported. The operation interfaces include the CIT interface, IAO LAN (via OSI or TCP/IP),
SYSCTL faceplate LEDs, and equipment indicators. DMX supports office alarms, user-definable miscellaneous discretes, and TL1.
Contents
The following operation interfaces are discussed in this section:
Craft Interface Terminal (PC-CIT)
TL1/LAN
Personal Computer Specifications for Software Download
LEDs, Indicators, and Office Alarms
............................................................................................................................................................................................................................................................
365-372-300
Issue 8.0, September 2006
1 0 - 1 4 3
Technical Specifications
Craft Interface Terminal (PC-CIT)
............................................................................................................................................................................................................................................................
Overview
The DMX PC-CIT is the primary tool used to interface with the DMX.
It is a personal computer (PC) with the DMX user-interface software installed. The DMX PC-CIT is compatible with PCs running Microsoft
Windows XP, Windows NT and Windows 2000. The PC-CIT also provides a user-friendly TL1 command builder interface.
Minimum requirements
It is anticipated that most customers will dedicate a lap-top PC to run the DMX PC-CIT applications software. However, a properly configured desktop PC will also suffice.
The following list shows the minimum requirements for the customer-provided PC with recommended Windows operating system.
• Microsoft Windows XP, 2000 or NT 4.0 Operating System with service pack 4. The customer is responsible for ensuring that the
PC remains virus -free.
• Pentium 266 MHz processor; Pentium III 500 MHz processor is recommended for optimum performance
• 128 MB RAM minimum: 256 MB RAM minimum for 5 system view
• One-gigabyte hard-disk drive with at least 150 megabytes of free space. The DMX PC-CIT application requires 50 MB, and the installation requires 30MB. In addition, each copy of the NE generic requires an additional 60 MB.
• CD-ROM drive
• SVGA monitor 800x 600 resolution (1024 x 768 recommended)
• 10 BASE-T LAN interface
Pin Designations/signals are:
– -1 TD+
– -2 TD-
– -3 RD+
– -6 RD-
...........................................................................................................................................................................................................................................................
1 0 - 1 4 4
365-372-300
Issue 8.0, September 2006
Craft Interface Terminal (PC-CIT)
Technical Specifications
PC-CIT and Windows requirements
The following table illustrates the Windows operating system requirements for DMX PC-CITs.
DMX port/
Windows
Guidelines
Windows XP
Windows NT
Windows 98 and 2000
Serial Port
X
X
X
OSI/TCP-IP LAN
Port
X
X
X
............................................................................................................................................................................................................................................................
365-372-300
Issue 8.0, September 2006
1 0 - 1 4 5
Technical Specifications
TL1/LAN
............................................................................................................................................................................................................................................................
Overview
DMX supports a TL1 over TCP/IP interface or TL1 over OSI LAN interface for communication between a DMX NE and an Element
Management System (EMS) of a Network Management System
(NMS). TL1 over TCP/IP LAN complies with requirements specified in IEEE 802.3 and NSIF-AR-9806-088R11.
TL1 translation device
(T-TD Gateway)
The T-TD is a device that translates TL1 messages over a TCP/IP connection to a TL1 over OSI association, providing a TL1 TCP-OSI gateway. The T-TD, when used in conjunction with the PC-CIT, is an open system interconnection (OSI) proxy that accepts TCP/IP connections and sets up matching OSI connections. This requires the support of the TCP/IP stack and the seven-layer OSI stack.
Front IAO LAN interface
The DMX provides an RJ45-compatible front IAO LAN interface that is intended for use with a local PC. This interface will support a
TL1/TCP gateway via an IEEE 802.3-compliant interface with a graphical user interface (GUI) in future releases.
Rear IAO LAN interface
TL1 over TCP/IP or TL1 over OSI LAN is supported via an
RJ45-compatible IAO LAN rear interface (R1.1) on the DMX, enabling the DMX to connect with any NMS possessing a compatible
TCP/IP or OSI interface (such as the EMS or the PC-CIT). This allows
TL1 communication over a data network between several different
NEs. For instance, Lucent’s Navis Element Management System
(EMS) can communicate with a DDM-2000 that is on the same network as the DMX connected to the EMS via the rear IAO LAN interface. The IAO LAN complies with OSI requirements as specified in GR-253-CORE, Section 8.
SONET DCC
The SONET DCC provides TL1 over OSI connections with remote
NEs in a subnetwork.
...........................................................................................................................................................................................................................................................
1 0 - 1 4 6
365-372-300
Issue 8.0, September 2006
Technical Specifications
Personal Computer Specifications for Software Download
............................................................................................................................................................................................................................................................
Specifications
The PC used for software download should have:
• Windows NT or 2000
• CD-ROM drive for CD-ROM download.
Compatible modems
A compatible modem must meet the following minimum requirements:
• 300, 1200, 2400, 4800, 9600, 19,200 or 115,000 baud
• Full duplex
• 8 data bits
• No parity bits
• 1 start bit
• 1 stop bit
• No flow control.
............................................................................................................................................................................................................................................................
365-372-300
Issue 8.0, September 2006
1 0 - 1 4 7
Technical Specifications
LEDs, Indicators, and Office Alarms
............................................................................................................................................................................................................................................................
LNW1 and LNW2 SYSCTL
Faceplate
The LNW1 and LNW2 SYSCTL circuit pack faceplate contain the following push-button switches and LEDs (LNW2 specific items are labeled as such):
• ACTIVE LED (LNW2 only)
• FAULT LED
• Critical (CR) LED
• Major (MJ) LED
• Minor (MN) LED
• Abnormal (ABN) LED
• Far End Activity (FE) LED
• Near End Activity (NE) LED
• Alarm Cut-Off/Test (ACO) LED
• ACO/TEST (ACO SW) button
• Select (SEL) button
• Update/Initialize (UPD INIT) button
• 7-segment numeric display (LNW1), or alphanumeric LED display (LNW2)
The seven segment/alphanumeric LED numeric display is used to identify the remote system presently displayed on the local user panel.
A green PWR ON LED is lighted when the shelf is receiving -48 V power. A green ACO LED is lighted when the ACO function is active.
The SEL, ACO SW, and UPD INIT push-buttons are provided to control system operation.
The LNW2 contains increased memory to support the enhanced feature set in R6.0 and upcoming releases. It must be used with R6.0. The
LNW1 supports R5.x and prior releases.
Equipment indicators
A red LED FAULT indicator is provided on all circuit packs. A green
LED ACTIVE indicator is provided on all 1x1 protected circuit packs to indicate which circuit packs are actively carrying traffic.
Office Alarms
The office alarms interface is a set of discrete relays that control office audible and visual alarms. Separate relays handle CR, MJ, and MN alarms. Each contact closure is rated at 1 A, 60 V maximum. The CR
...........................................................................................................................................................................................................................................................
1 0 - 1 4 8
365-372-300
Issue 8.0, September 2006
LEDs, Indicators, and Office Alarms
Technical Specifications
and MJ alarms can be wire-ORed. The CR alarm relays are fail safe against unprotected power failures.
............................................................................................................................................................................................................................................................
365-372-300
Issue 8.0, September 2006
1 0 - 1 4 9
Technical Specifications
User-setable Miscellaneous Discrete Interface
............................................................................................................................................................................................................................................................
Overview
The user-setable miscellaneous discrete interface allows an operations system (OS) to control and monitor equipment collocated with the
DMX through a set of input and output contact closures. Miscellaneous discrete environmental inputs can monitor conditions like open doors or high temperature, miscellaneous discrete outputs control equipment such as fans and generators. The status of the miscellaneous discrete environmental inputs can be queried on demand via the DMX PC-CIT.
DMX collects miscellaneous discrete alarms and automatically sends them to the operations system (OS)
.
External customer equipment
Any external customer equipment to be monitored by DMX must provide the electrical equivalent of a contact closure across the corresponding environmental input wiring pairs. The contact closure must be capable of passing at least 10 mA of drive current.
Power source
Reference
The power source to enable the control of external customer equipment may have a voltage range from a minimum of 3 V to a maximum of
72 V. DMX provides a unidirectional opto-isolator connection across each corresponding control output wiring pair. The load current across each control output wiring pair must be limited by the external customer equipment and must not exceed 35 mA.
For detailed wiring information, refer to the Metropolis
®
DMX Access
Multiplexer Installation Manual, 365-372-304 and Metropolis
®
DMX
Access Multiplexer Application Schematic, SD8C500-01.
...........................................................................................................................................................................................................................................................
1 0 - 1 5 0
365-372-300
Issue 8.0, September 2006
