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30 MONITOR ISM™/AFx™ IP Connectivity Guide 22-9058 v2.1

4.1 Network Loading and Performance

PCPanel with IP (Examples)

• Absolute Maximum Rating (regardless of number of

panels) = 3840 bytes / second. Equivalent to 38400

bps direct channel to panel.

• Send to 1 Panel at Memory Model 3: Typically of {Duration = 00:47 (mm:ss), Total Number

of Bytes = 32106, Total Packets = 312, Bytes / Second = 683, Packets / Second = 6}.

• Send to 1 Panel at Memory Model 5

: Typically of {Duration = 01:14 (mm:ss), Total Number

of Bytes = 80856, Total Packets = 648, Bytes / Second = 1107, Packets / Second = 8}.

• Send to 1 Panel in a 7 Panel Group at Memory Model 5

: Typically of {Duration = 01:38

(mm:ss), Total Number of Bytes = 128639, Total Packets = 1312, Bytes / Second = 1312,

Packets / Second = 15}.

• Send to 1 Panel at Memory Model 9: Typically of {Duration = 05:01 (mm:ss), Total Number

of Bytes = 368921, Total Packets = 2680, Bytes / Second = 1225, Packets / Second = 8}.

• Normal Idle with 1 Panel

: Typically in a 02:10 (mm:ss) window, Total Number of Bytes =

27476, Total Packets = 502, Bytes / Second = 211, Packets / Second = 3.

2000 Events uploaded from 1 panel would be typically performed in a 00:20 (mm:ss)

window. Total number of Bytes = 25739. Total Packets = 185, bytes/second = 1225,

Packets / Second = 8.

Central Monitoring with IP (SIP Reporting)

• Absolute maximum rating = 60 bytes / second.

Equivalent to 600 bps, direct serial channel to panel.

• SIP uses very little network bandwidth.

• SIP Reporting for 3 Panels:

Equivalent loading to 600

bps serial channel with idle performance typically at

{1284 bytes total bytes over 01:15 (mm:ss) in 24

packets, Bytes per Second around 17 and Packets

Per Second around 0.

Network Delays and Communications Timeouts

• Network delays should generally not exceed 2.0 seconds for proper operation of ISM / AFx

Director and SIP Reporting.

• Maximum delays during peak network loading should not exceed 4 seconds. The ISM /

AFx Director software and SIP reporting software is capable of handling delays of this

magnitude without serious interruption to communications, as long as the delays are not

persistent.

• The SIP receiver program will always retry communications with the panel but a line failure

indication will be given if the network failure is of a substantial nature.

• Director will also retry communications in the event of a network failure but only for 5

retries spanning 20 seconds. If the network delays/outages last longer than this,

communications will be dropped and will have to be re-entered in the communications

pending/on-line screen of the GUI.

These measurements were made

on a 10BaseT LAN using a P3-600

PC running Windows 98.

These measurements are based on

a P3-600 running the SIP Receiver

program communicating with 3

panels over a WAN connection.

Measurements are based on the

standard cycle time (polling rate) of

15 seconds per panel.

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