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9625LG Series Logo Inserters and Media Keyers Manual
258A or EIA/TIA 258B color coding shown). Also refer to the notes following the table for additional
wiring guide information.
Pin #
Pin
1
1
Transmit +
2
Transmit –
3
4
5
6
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 colors and not have a stripe.
•
Category 5 cable must use Category 5 rated connectors.
The maximum cable run between the keyer and the supporting hub is 300 ft (90 m). The maximum
combined cable run between any two end points (i.e. keyer 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 keyer rear panel is fitted with two LEDs to monitor the
Ethernet connection.
10/100
This Amber LED is ON when a 100Base-TX link is last detected. The LED is
OFF when a 10Base-T link is last 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.
LN/ACT
This dual purpose Green LED indicates that the 9625LG Series Keyers has
established a valid linkage to its hub, and whether the 9625LG Series Keyer is
sending or receiving data. This LED will be ON when the 9625LG Series Keyer
has established a good link to its supporting hub. This gives you a good
indication that the segment is wired correctly. The LED will BLINK when the
9625LG Series Keyer is sending or receiving data. The LED will be OFF if there
is no valid connection.
2.9.
CONNECTING THE GENERAL PURPOSE INPUTS AND OUTPUTS
Figure 2-4 shows a simplified schematic diagram of the GPIO circuitry. The user can connect GP+3.3V
supplied from the keyer unit into the Vext pin to provide power to the GPIO opto-isolator circuitry. In
Page 2-10
Signal
EIA/TIA 568A
White/Green
Green/White or White
Receive +
White/Orange
N/A
Blue/White or Blue
N/A
White/Blue
Receive –
Orange/White or Orange
N/A
White/Brown
N/A
Brown/White or Brown
Table 2-8. Standard RJ45 Wiring Color Codes
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 4.2
10BaseT
or 100BaseT
X
X
X
Not used (required)
Not used (required)
X
Not used (required)
Not used (required)
INSTALLATION
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