PATH Network Flashcards
SONET Cabinets:
Typical Field Layout
- 15454
- 15327
- Netbotz
- Fiber Optic Patch Panel
- Power Supply
- 2924 (Removed)
DWDM Topology:
DWDM A-Core PTCC
Loop 1 (5 Remote Sites) PTCC, Backus, WTC, EXCH, Grove
Loop 2 (11 Remote Sites) JSQ, NWPT, Hob, Cais 1, Mort, Chrst, 9th, 14th, 23rd, 33rd, 19th, Wash, PTCC
Loop 3 (6 Remote Sites) JSQ, NWK, Harr, Sub 14, Sub 8, Sub 7, Sub 6
*2nd Chassis for Loop 2 another cabinet.
DWDM CARDS:
- Common Control Card
- Optical - SMR40
- Client Cards
- Blank
- Filter
Common Control Card:
2 TNC/1 LCD
- Used for provisioning, maintenance, diagnostics.
- Always 2 cards (FOR REDUNDANCY) and 1 LCD PER CHASSIS.
- Stores node config on each card and LCD (3 places).
OPTICAL
( SMR40) ROADM
- 40 Channel single module ROADM (Reconcigurable, Optical, Add, Drop Multiplexer) with integrated optical pre-amp.
- Fiber connections to adjacent nodes
- Always 2 per chassis for eastbound and westbound Fiber.
CLIENT CARDS:
Any rate and 10x10 muxponders
• For 10Mbps and 10Gbps Ethernet service.
BLANK CARDS:
Prevents Dust
Must be used at all times.
FILTER:
440
- 4 Channels in the field.
* 40 Channels in the core.
DWDM - TNC CARD
OAMP
- Timing, Communication and Control Card
- Redundant Processing Card•
- Management of MSTP Shelf
- CTC Access
- Node Database Config
- Software
- OAMP• (Operation, Administration, Maintenence and Provisioning of node.
- Multi-Shelf Communication
ANYRATE MUXPONDER CARD:
4 x 2.5 Gbps
- Transport 4 OC-48/STM16 payloads over one OC-192/STM64 100-GHz spaced wavelength.
- At PATH we mux 4 (1 Gbps) client signals onto 2 (2.5 Gbps) wavelengths that drop into PTCC/HOBAN Network cores.o
10x10 CARD:
Cisco 10 Port, 10 Gbps line Card
10 Enhanced small form factor pluggable (SFP+)
• One 100Gbps Channel Express (CxP) port
DWDM - ONS 15216 MD-40 Filter (odd/even)
- 40 Channel multiplexer/demultiplexer
- Even/Odd channel option
- Combine/Separate odd-even wavelengths
👍🏽 DWDM - Remote Site Filter:
4 chann. fixed wavelength filter
- 4 Channel Fixed wavelength Filter.
- 2 of each Filter in the field
- 1 for Fiber to PATH PTCC
- 1 for Fiber to PATH HOBAN
PATH CORE NETWORK:
Infrastructure
- HOBAN (JSQ)
* PTCC (C-YARD)
LEGACY CORE TECHNOLOGY:
Old System
In process to be replaced
NEXUS CORE TECHNOLOGY
New System
In production, replacing LEGACY
✔️ PATH NETWORK PROVIDES:
(Critical Services)
S.S.F.
- Signal Code
- SCADA
- Fare Collection
Connects to PA Network - PAWNET
Remote access and support for venders (Bus. Partners)
Complex mix of Remote Sites, up technologies, Transport technologies, Redundancy schemes.
PATH NETWORK COMPRISED OF:
- 22 Remote Sites (Pass/Substations)
- 2 Core Data Centers (PTCC/HOBAN)
- PATH Facilities (Waldo Coin Room, McMillian)
PATH NETWORK “2 MAIN FUNCTIONS”:
- Critical Infrastructure for (Signal Code, SCADA, Fair Collections, LENEL)
- BackHauls (Non-Path Services) to our Core Data Centers.. Data handed to other network such as PAWNET.
PATH NETWORK LAYERS:
A.T.C.
- Access Layers - Switches connected to end devices.
- Transport Layers - SONET, DWDM Backhaul service from field to core Sites (PTCC to HOBAN).
- Core Layers - Head End switches at PTCC / HOBAN (CISCO NEXUS 9504, 9372) A-B Sides redundant.
15327:
SIGNAL CODE
NORMAL NETWORK
15454:
Signal Code
REVERSE Network
OPAL/CUBIC FARE COLLECTIONS:
• Originates in field communicates across (15454 SONET) up to core at HOBAN
PATH NETWORK COMMUNICATION or TRANSPORT:
- Signal Code
- SCADA
- Fare Collections (OPAL/CUBIC)
- LENEL
- CCTV
- PAWNET - Handreaders, workstations, VOIP, Phone / Voice Gateways.
- Radio
- Public Address
- PAX
- INTER-COMM
PATH NETWORK MGMT:
CISCO Solar winds, NMS to monitor outages, traffic/patterns
Manage/Monitor PATH Network around clock from several locations.
• Con-Shop, NOC @ JSQ, Supervisors Office
SONET:
(Synchronous Optical Network)
SONET is data converter, converts data into light to transmit over Fiber.
SDH:
Synchronous DATA Heirarchy.
• Standard Protocol to transfer multiple data bits streams over Fiber (T1/Ethernet).
PATH SONET TOPOLOGY:
(2 seperate ONS Data Network Rings)
3 per network = 6 Rings total
3 Rings per network = 6 Rings total
• Each Network arranged into 3 rings for 6 SONET rings (3 per network)
DWDM:
Dense Wave Dividion Multiplexing
• Combines multiple inputs Into diff. Color single output wavelength channel.
NETWORK RING:
- Each ring is called a LOOP (3 LOOPS) LOOP 1,2,3
* Core DATA Centers involved in all 3 Rings
PATH SONET TIMING/NTP:
- High Accuracy Timing for SONET Networks (from CESSIUM BIT Clock @ HOBAN)
- NTP - Network Timing Protocol for logging and other devices from 2 NTP Servers @ PTCC
INVERTER:
DC to AC
RECTIFIER:
AC to DC
SONET POWERED:
(-48v DC) Both Sonets powered
Always 2 sources of power
• AC/DC Main source(HOUSE)
• UPS
CISCO 2960 Switch:
2 in the field
Main Access Layer Switch
NETBOTZ:
Environmental Device
Measures Temp/Humidity
Services we Transport (NOT MANAGE):
PAWNET-FARE COLLECTIONS
Cisco 15454 SONET
OC-48 Network
- Higher Bandwidth SONET Network (Called 454 Network or OC-48)
- Facilitates Ethernet/T1 Services.
CISCO 15454 Cards:
• Common Control • AIC - Alarm Interface • Electrical (-48v DC) • Optical (OC-48, OC-192) Ethernet Card (100Mbps - 1Gbps) • TCC2 Card - Alarms (4 types of alarms) Critical, Major, Minor, Remote
OC-48 CARD:
2.5 Gbps
Connects Nodes in Field.
ML CARD:
For Video and High Speed Ethernet.
15327 SONET
OC-12
- Obsolete,
- Lower Bandwidth
- For Ethernet and T1 Services
PATH LAN NETWORK:
Encompasses the Access and Core Layers
LAN - ACCESS LAYER
• 327, 454, DWDM all connect to access switches in the field (Cisco 2960).
• Always 2 of them labeled 2960-1/2960-2
Located in DCE-A/DCE-B cabinets.
• For all CLIENT connections.
LAN - CORE LAYER
- 2 Data Centers: HOBAN/PTCC
- Each Data center has A side / B side.
- Redundant Supervisory Cards/Power Supplies
- Key Services and Access switches are “Dual Homed” to A/B sides of Data Center.
GENERAL NETWORK INFO:
Speeds
- Bandwidth measured in (bps)
- Speed in Network - 10Mbps, 100Mbps, 1Gbps, 2.5Gbps,10Gbps, 40Gbps.. Diff rates means Diff fiber pluggables.
- CAT5/6 have distance limit of 100m (use Ethernet to fiber extenders to overcome this)
- Single Mode Fiber typically used.
- Some Multi-Mode is used for DWDM clients in Data Centers.
GENERAL PATH NETWORKS:
Power
- Remote Comm rooms use 2 discrete power sources - “House and UPS“ Power.
- SONET, DWDM, 2960s have dual power supplies.
- Local UPS are at some sites for critical devices such as “SONET and LANTRONIX” for Signal Code.
GENERAL PATH NETWORK:
Netbotz/Solar Winds
- Tools to Manage and Monitor Path Network
- NETBOTZ - environmental monitor for temperature and humidity (used everywhere we have SONET).
- SOLAR WINDS is network monitor system for up/down status, temperature info via SNMP Ping protocols.
PATH NETWORK SERVICES:
communications or transport only
• SIGNAL CODE • SCADA • FARE COLLECTIONS (Opal, Cubic) • LENEL • CCTV PAWNET (Handreaders, Workstations, VIOP Phones and VGs)
66 Block 25 Pair Color Code:
- ACROSS - Blue, Orange, Green, Brown, Slate.
* DOWN - White, Red, Black, Yellow, Violet
CAT5/6:
“T568B” RJ45 Color Code
- W/O
- O
- W/G
- BL
- W/BL
- G
- W/BR
- BR