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10
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Auto MDI/MDI-X Connection
The Auto MDI/MDI-X function allows users to connect the NI MES-3980’s
10/100BaseTX ports to any kind of Ethernet device, without needing to pay
attention to the type of Ethernet cable being used for the connection. This
means that you can use either a
straight-through
cable or
cross-over
cable to
connect the NI MES-3980 to Ethernet devices.
Specifications
Technology
Standards IEEE802.3,
802.3u,
802.3x, 802.1D, 802.1w, 802.1Q,
802.1p, 802.1X, 802.3ad
Protocols
IGMP V1/V2/V3 device, GVRP, GMRP, SNMP
V1/V2c/V3, DHCP Server/Client, BootP, RMON,
TFTP, SNTP, SMTP, RARP
MIB MIB-II,
Ethernet-Like MIB, P-BRIDGE MIB,
Q-BRIDGE MIB, Bridge MIB, RSTP MIB, RMON
MIB Group 1,2,3,9
Forwarding and
Filtering Rate
148810 pps
Processing Type
Store and Forward
Flow Control
IEEE802.3x flow control, back pressure flow control
Interface
RJ45 Ports
10/100BaseT(X) auto negotiation speed, F/H duplex
mode, and auto MDI/MDI-X connection
Console RS-232
(RJ45)
LED Indicators
PWR1, PWR2, FAULT, 10M, 100M, MASTER and
COUPLER
Relay Contact
Two relay outputs with current carrying capacity of
1A @ 24 VDC
DIP Switches
Master, Coupler, Turbo Ring, Reserve
Digital Input
Two inputs with the same ground, but electrically
isolated from the electronics
• For state “1”: +13 to +30V
• For state “0”: -30 to +3V
• Max. input current: 8 mA
Power
Input Voltage
12 to 45 VDC, redundant inputs
Input Current (@24V)
Max. 0.29A
Connection
Two removable 6-pin terminal blocks
Overload Current
Protection
Present
Reverse Polarity
Protection
Present
Mechanical
Casing
IP30 protection, metal case
Dimensions
80.5
×
135
×
105 mm (W
×
H
×
D)
Weight
1.04 kg
