Ethernet Connection - evertz 7800 Manual

2.1.1. Ethernet Connection

The 7880DEC-H264HD Series uses 10Base-T (10 Mbps), 100Base-TX (100 Mbps) or Gigabit (1Gbps)
twisted pair Ethernet cabling systems. When connecting for 10Base-T systems, category 3, 4, or 5
UTP cable as well as EIA/TIA – 568 100Ω STP cable may be used. When connecting for 100Base-TX
systems, category 5 UTP cable is required. The cable must be "straight-through" with an RJ-45
connector at each end. Establish the network connection by plugging one end of the cable into the RJ-
45 receptacle of the card and the other end into a port of the supporting hub.
The straight-through RJ-45 cable can be purchased or can be constructed using the pin-out
information in Table 2-1. A colour coded wiring table is provided in Table 2-1 for the current RJ-45
standards (AT&T 258A or EIA/TIA 258B colour coding shown). Also refer to the notes following the
table for additional wiring guide information.
Pin #
Pin
1
1 Transmit +
2 Transmit –
3 Receive +
4
5
6 Receive –
7
8
Note the following cabling information for this wiring guide:
•
Only two pairs of wires are used in the 8-pin RJ-45 connector to carry Ethernet signals.
•
Even though pins 4, 5, 7 and 8 are not used, it is mandatory that they be present in the cable.
•
10BaseT and 100BaseT use the same pins (a crossover cable made for one will also work with the
other).
•
Pairs may be solid colours and not have a stripe.
•
Category 5 cable must use Category 5 rated connectors.
The maximum cable run between the router and the supporting hub is 300 ft (90 m). The maximum
combined cable run between any two end points (i.e. router and PC/laptop via network hub) is 675 feet
(205 m).
Devices on the Ethernet network continually monitor the receive data path for activity as a means of
checking that the link is working correctly. When the network is idle, the devices also send a link test
signal to one another to verify link integrity. The rear panel is fitted with two LEDs to monitor the
Ethernet connection.
1000: This Amber LED is ON when a 100Base-TX or 1000Base-TX link is detected. The LED is
OFF when a 10Base-T link is detected (the LINK LED is ON). Upon power-up the LED is
OFF as the last detected rate is not known and therefore defaults to the 10Base-T state
until rate detection is completed.
Signal EIA/TIA 568A
White/Green
Green/White or White
White/Orange
N/A Blue/White or Blue
N/A White/Blue
Orange/White or Orange
N/A White/Brown
N/A Brown/White or Brown
Table 2-1: Standard RJ-45 Wiring Colour Codes
7880DEC-H264HD H-264 HD Decoder
AT&T 258A or
EIA/TIA 568B
White/Orange
Orange/White or Orange
White/Green
Blue/White or Blue
White/Blue
Green/White or Green
White/Brown
Brown/White or Brown
Revision 1.0
7800 MultiFrame Manual
10BaseT
or 100BaseT
Not used (required)
Not used (required)
Not used (required)
Not used (required)
7880DEC-H264HD - 3
X
X
X
X