990XCP98000 SQUARE D, 990XCP98000 Datasheet - Page 289
![no-image](/images/manufacturer_photos/0/6/626/square_d_sml.jpg)
990XCP98000
Manufacturer Part Number
990XCP98000
Description
QUANTUM CPU BATTERY FOR S
Manufacturer
SQUARE D
Datasheet
1.990XCP98000.pdf
(463 pages)
Specifications of 990XCP98000
Rohs Compliant
YES
Battery Capacity
1800mAh
Battery Technology
Lithium
Battery Voltage
3V
Battery Terminals
Connector
Weight
0.12lb
- Current page: 289 of 463
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Fiber optics
Quantum node 1
P/S CPU
T-connector
Multimode optical fiber
NOM
Quantum
Node 3
Fiber optic repeater
490 NRP 254
P/S CPU
I/O
Modbus Plus cable
Modicon
automation platform
Modbus Plus
Optional fiber optic cabling is available for a Modbus Plus network. With fiber optics,
the total length of the network can be increased to as much as 3 km. The fiber optic
medium provides secure links that may be necessary in certain harsh environments.
Fiber optic cabling is not susceptible to the effects of electromagnetic interference,
RF interference or lightning. It also provides total isolation between terminal points
on the link.
A point-to-point link between CPUs on a Modbus Plus network allows
communications in a harsh environment over distances of up to 3 km.
It is possible to create a “self-healing” ring in a mixed fiber/twisted pair network by
connecting the unused fiber optic ports of the first and last 140 NOM 252 00 modules,
either directly or via a fiber optic repeater. This type of configuration retains the
advantages described previously, in addition to built-in redundancy. A broken
connection between any two Quantum modules in the ring will automatically
reconfigure the network into a bus configuration, and continue communication.
Node 1
490 NAA 271 pp
Fiber optic network
Point-to-point topology
Ring topology
I/O
RX
NOM
TX
I/O
Premium
P/S CPU
I/O
™
®
node 2 (with TSX MBP 100)
™
Quantum
Line termination T-connector
network
I/O
I/O
Module 140 NOM 252 00
Fiber optic cables
I/O
up to 3 km
Advantys STB
Altivar ATV
INPUT
OUTPUT
+
–
A
B
INPUT
OUTPUT
+
–
™
A
B
Node 4
P/S CPU
Node 2
NOM
I/O
6/71
I/O
0
10
10
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
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