Contemporary Control Systems 100T-H Installation Guide

EISK5-100T/H

Skorpion Diagnostic Switch for Protocol Debugging

Installation Guide

The EISK5-100T/H is designed as an aid in diagnosing Ethernet communication
issues and debugging software. This device has all of the features of a normal
switch except that — like a repeating hub — it passes messages received by any port
to all other ports. This allows the activity of all ports to be monitored by a ―sniffer‖
attached to any port — an ability that would otherwise require the ―port mirror‖ function
of a more costly managed switch.

The five ports of the EISK5-100T/H offer features that traditional repeating hubs
do not. Each port supports Auto-MDIX — so either straight-through or crossover
cabling can be used. The collision domain is terminated at each port — so that a
network of EISK5-100T/H units has no cabling length limit — except that each
segment cannot exceed the 100 m specification for Ethernet. Store-and-forward
operation mitigates against lost messages. Each port automatically negotiates
its data rate to 10 Mbps or 100 Mbps — controlling data flow with the PAUSE
function in full-duplex links or with the backpressure method in half-duplex links.

Link integrity is monitored — verifying that a working device is on the far end of a
segment. In addition to the unit’s power LED, each port has two LEDs — one
showing link/activity/rate, and one showing duplex status.

The unit operates from low-voltage AC or DC power and is provided with a
writable label for easy identification of the remote device attached to each cable.

Specifications

Mechanical

Electrical

INPUT DC AC
Voltage: 10–36 V 24 V ±10%
Power: 3 W 6 VA
Frequency: N/A 47–63 Hz
Class 2 Circuits Only

Environmental

Operating Temperature: 0°C to +60°C
Storage Temperature: – 40°C to +85°C
Humidity, non-cond.: 10% to 95%
Protection: IP 30

Mounting TS-35 DIN-rail
Shipping Weight 1 lb (0.45 kg)
Regulatory Compliance

CE Mark; CFR 47 Part 15, Class A
UL508 Industrial Control Equipment

Functional

Compliance: ANSI/IEEE 802.3
Data Rates: 10 and 100 Mbps
Signalling: 10BASE-T and
100BASE-TX
Connectors: Shielded RJ-45
Segment length: 100 m (maximum)

LED Indicators

Power green
Activity/Link green or yellow
Duplex green

RJ-45 Pin Assignments

Pin Function
1 TD+
2 TD–
3 RD+
6 RD–

(All other pins are unused.)