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PATH Network Flashcards

1
Q

SONET Cabinets:

Typical Field Layout

A
  • 15454
  • 15327
  • Netbotz
  • Fiber Optic Patch Panel
  • Power Supply
  • 2924 (Removed)
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2
Q

DWDM Topology:

DWDM A-Core PTCC

A

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.

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3
Q

DWDM CARDS:

A
  • Common Control Card
  • Optical - SMR40
  • Client Cards
  • Blank
  • Filter
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4
Q

Common Control Card:

2 TNC/1 LCD

A
  • 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).
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5
Q

OPTICAL

( SMR40) ROADM

A
  • 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.
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6
Q

CLIENT CARDS:

Any rate and 10x10 muxponders

A

• For 10Mbps and 10Gbps Ethernet service.

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7
Q

BLANK CARDS:

Prevents Dust

A

Must be used at all times.

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8
Q

FILTER:

440

A
  • 4 Channels in the field.

* 40 Channels in the core.

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9
Q

DWDM - TNC CARD

OAMP

A
  • 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
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10
Q

ANYRATE MUXPONDER CARD:

4 x 2.5 Gbps

A
  • 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
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11
Q

10x10 CARD:

Cisco 10 Port, 10 Gbps line Card

A

10 Enhanced small form factor pluggable (SFP+)

• One 100Gbps Channel Express (CxP) port

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12
Q

DWDM - ONS 15216 MD-40 Filter (odd/even)

A
  • 40 Channel multiplexer/demultiplexer
  • Even/Odd channel option
  • Combine/Separate odd-even wavelengths
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13
Q

👍🏽 DWDM - Remote Site Filter:

4 chann. fixed wavelength filter

A
  • 4 Channel Fixed wavelength Filter.
  • 2 of each Filter in the field
  • 1 for Fiber to PATH PTCC
  • 1 for Fiber to PATH HOBAN
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14
Q

PATH CORE NETWORK:

Infrastructure

A
  • HOBAN (JSQ)

* PTCC (C-YARD)

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15
Q

LEGACY CORE TECHNOLOGY:

Old System

A

In process to be replaced

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16
Q

NEXUS CORE TECHNOLOGY

New System

A

In production, replacing LEGACY

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17
Q

✔️ PATH NETWORK PROVIDES:
(Critical Services)
S.S.F.

A
  • 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.

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18
Q

PATH NETWORK COMPRISED OF:

A
  • 22 Remote Sites (Pass/Substations)
  • 2 Core Data Centers (PTCC/HOBAN)
  • PATH Facilities (Waldo Coin Room, McMillian)
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19
Q

PATH NETWORK “2 MAIN FUNCTIONS”:

A
  • 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.
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20
Q

PATH NETWORK LAYERS:

A.T.C.

A
  • 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.
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21
Q

15327:

SIGNAL CODE

A

NORMAL NETWORK

22
Q

15454:

Signal Code

A

REVERSE Network

23
Q

OPAL/CUBIC FARE COLLECTIONS:

A

• Originates in field communicates across (15454 SONET) up to core at HOBAN

24
Q

PATH NETWORK COMMUNICATION or TRANSPORT:

A
  • Signal Code
  • SCADA
  • Fare Collections (OPAL/CUBIC)
  • LENEL
  • CCTV
  • PAWNET - Handreaders, workstations, VOIP, Phone / Voice Gateways.
  • Radio
  • Public Address
  • PAX
  • INTER-COMM
25
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
26
SONET:
(Synchronous Optical Network) SONET is data converter, converts data into light to transmit over Fiber.
27
SDH: | Synchronous DATA Heirarchy.
• Standard Protocol to transfer multiple data bits streams over Fiber (T1/Ethernet).
28
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)
29
DWDM: | Dense Wave Dividion Multiplexing
• Combines multiple inputs Into diff. Color single output wavelength channel.
30
NETWORK RING:
* Each ring is called a LOOP (3 LOOPS) LOOP 1,2,3 | * Core DATA Centers involved in all 3 Rings
31
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
32
INVERTER:
DC to AC
33
RECTIFIER:
AC to DC
34
SONET POWERED: | (-48v DC) Both Sonets powered
Always 2 sources of power • AC/DC Main source(HOUSE) • UPS
35
CISCO 2960 Switch: | 2 in the field
Main Access Layer Switch
36
NETBOTZ: | Environmental Device
Measures Temp/Humidity
37
Services we Transport (NOT MANAGE):
PAWNET-FARE COLLECTIONS
38
Cisco 15454 SONET | OC-48 Network
* Higher Bandwidth SONET Network (Called 454 Network or OC-48) * Facilitates Ethernet/T1 Services.
39
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 ```
40
OC-48 CARD: | 2.5 Gbps
Connects Nodes in Field.
41
ML CARD:
For Video and High Speed Ethernet.
42
15327 SONET | OC-12
* Obsolete, * Lower Bandwidth * For Ethernet and T1 Services
43
PATH LAN NETWORK:
Encompasses the Access and Core Layers
44
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.
45
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.
46
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.
47
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.
48
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.
49
PATH NETWORK SERVICES: | communications or transport only
``` • SIGNAL CODE • SCADA • FARE COLLECTIONS (Opal, Cubic) • LENEL • CCTV PAWNET (Handreaders, Workstations, VIOP Phones and VGs) ```
50
66 Block 25 Pair Color Code:
* ACROSS - Blue, Orange, Green, Brown, Slate. | * DOWN - White, Red, Black, Yellow, Violet
51
CAT5/6: | “T568B” RJ45 Color Code
1. W/O 2. O 3. W/G 4. BL 5. W/BL 6. G 7. W/BR 8. BR

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