Avaya LAN switching products
118 Avaya Application Solutions IP Telephony Deployment Guide
For enterprises deploying Avaya Communications Manager for mission-critical call center and
large-scale campus environments, the C460 offers an ideal IP Telephony platform that
combines fault tolerance, network responsiveness for business continuity, and integrated
management and monitoring for converged networks.
Avaya Power over Ethernet (PoE) switches
Available PoE Switch Options
Data and power are combined in a (PoE) switch and sent over a single cable, thus simplifying
power management and cabling infrastructure and saving rack space.
Avaya offers the following PoE switches:
●
C360 Converged Stackable Switches (C363T-PWR and C364T-PWR)
●
C460 Converged Multilayer Switch
●
P333T-PWR PoE Switch
All PoE Switches comply with the IEEE 802.3af standard.
PoE is carried over the signal leads, providing remote -48V power feeds on all 10/100 ports in
the switch/module (except on an expansion module in P333T-PWR). This allows the PD
(Powered Device) to be up to 100m away from the switch. Each port performs a standard
compatibility detection process before power is supplied to the Ethernet lines. If the PD is
removed or the link is interrupted, the port polling mechanism detects this, and power is cut off
to the port while the detection process is applied again.
The PoE switch applies power to the port only after it detects that a PD is actually connected to
the port. Each PD has a resistance range known as a "signature." The switch knows what
power has to be supplied to the device according to the signature.
Load detection is performed every 240 ms. All ports are checked for the resistance signature on
a port-by-port basis. Only non-powered ports participate in the periodic load detection. Once
power is provided to a port, it is checked periodically to see if a PD is still connected. If a PD is
disconnected from a powered port, then power is denied to the port. Disconnected ports then
automatically join the periodic load detection cycle. Each port of the switch is protected against
channel overload, short circuit, and reversed polarity that might be caused by faulty connection
between two feeding channels or by a crossed cable connection.
Switch
Maximum PoE Power (W)
Number of Powered Ports in Switch
C363T-PWR
305 24
C364T-PWR
520
48
C460
2,400 (with three PSUs)
192
P333T-PWR
200
24
Содержание Application Solutions
Страница 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Страница 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Страница 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 74: ...Avaya Application Solutions platforms 74 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Страница 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 214: ...Voice quality network requirements 214 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 239: ...Reliability Issue 3 4 1 June 2005 239 Figure 69 S8700 Media Server in a high reliability configuration ...
Страница 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Страница 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 350: ...Implementing Communication Manager on a data network 350 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Страница 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...