7700/7800 MultiFrame
Manual
7880IP-ASI-IP IP/ASI/IP Converter
Page 4
Revision 1.1
ASI OUT:
This BNC connector output is compatible with DVB/ATSC-ASI standards. This ASI
Outputs corresponds to the IP Inputs on the 7880IP-ASI-IP module.
2.1.2. Ethernet Connection
The 7880IP-ASI-IP 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 – 568 100
Ω
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
1
Pin #
Signal
EIA/TIA 568A
AT&T 258A or
EIA/TIA 568B
10BaseT
or 100BaseT
1
Tr
White/Green
White/Orange
X
2
Transmit –
Green/White or White
Orange/White or Orange
X
3
R
White/Orange
White/Green
X
4
N/A
Blue/White or Blue
Blue/White or Blue
Not used (required)
5
N/A
White/Blue
White/Blue
Not used (required)
6
Receive –
Orange/White or Orange
Green/White or Green
X
7
N/A
White/Brown
White/Brown
Not used (required)
8
N/A
Brown/White or Brown
Brown/White or Brown
Not used (required)
Table 2-1: Standard RJ-45 Wiring Colour Codes
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.
