Keysight M9521A, Руководство для стартапов

Страница: 10 / 38

10 Keysight M9521A AXIe System Module Startup Guide
Introduction
M9521A AXIe System Module (ASM)
*
The ASM is a full-height AXIe module and must be installed in the controller slot
of the AXIe chassis. It performs the following functions:
- monitors chassis temperature and controls variable-speed chassis fans
- acts as a Gigabit Ethernet switch; routes packets across the backplane
- connects an external host PC to the chassis
- synchronizes timing across all modules through the Trigger Bus, using an
internal or external clock source
ASM Front Panel
* The M9521A ASM is different than the Embedded System Module (ESM) used in the Keysight M9502A and
M9505A AXIe chassis. They are not interchangeable.
1 PCIe 1 PCIe 1 connector connects a remote host PC to the chassis or connects
multiple chassis via PCIe. This upstream connection is Gen 2 compliant
PCIe x8.
2 PCIe 2 PCIe 2 connector connects multiple chassis. This downstream connection
is Gen 2 compliant PCIe x8.
3 Out Of Service When red, LED indicates operational failure of the ASM.
CLOCK
External clock connections. 10 MHz
±
100 ppm. SMB connectors with ESD
suppression.
4 IN Accepts an externally sourced timing input. Input range 5V peak, AC
coupled,
50 Ω terminated, 250 mV minimum swing.
5 OUT Extends the internal clock source to external instruments. 3.3V AC coupled,
50
W
output impedance.
MULTIFRAME Synchronizes timing signals with multiple daisy-chained chassis (either
2-slot or 5-slot). 36-pin mini D connectors use accessory Keysight cables.
6 INPUT Communicates to the next higher chassis in a multi-chassis system. The
highest chassis is referred to as the Master Chassis
7 OUTPUT Communicates to the next lower chassis in a multi-chassis system.
8 Ports External bidirectional, programmable trigger connections.
Port 1 - Port 6 Adjustable threshold input range -5V to +5V, 250 mV minimum swing.
9 ASM IP Reset Resets the ASM LAN1/LAN2 ports to factory preset address. (169.254.1.1).
10 LAN 1
LAN2
Connects the host PC to the chassis, RJ45 connector. Tri-rate
10/100/1000 Base-T, auto crossover. Amber link/activity LED, bicolor
speed (Amber = 1Gbps, Green = 100 Mbps, off = 10 Mbps)
An embedded controller module does not use this port; it communicates
with the ASM through the chassis backplane.
11 ASM Status The Status indicator is a tri-color LED. Green indicates normal operation.
Red indicates a power-up error. Amber indicates chassis is powered and
booting.
11
1
2
7
4
5
6
8
9
10
3