evertz 7880IPG-NAT Series, Руководство пользователя

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7880IPG-NAT Series
High Density Network Address Translator
Revision 2.1
Page - 7
Pin 1
Pin # Signal EIA/TIA 568A
AT&T 258A or
EIA/TIA 568B
1 DA + White/Green White/Orange
2 DA - Green/White or White Orange/White or Orange
3 DB + White/Orange White/Green
4 DC + Blue/White or Blue Blue/White or Blue
5 DC - White/Blue White/Blue
6 DB - Orange/White or Orange Green/White or Green
7 DD + White/Brown White/Brown
8 DD - Brown/White or Brown Brown/White or Brown
Table 2-2: 1000BaseT Straight Through Wiring Connections
The maximum cable run between the 7880IPG-NAT and the supporting switch is 328 ft (
100 m ). The
maximum combined cable run between any two end points (i.e. 7880IPG-NAT and PC/laptop via
network switch) 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.
LN/ACT: This dual purpose Green LED indicates that the card has established a valid linkage to its
switch, and whether the module is sending or receiving data. This LED will be ON when
the module has established a good link to its supporting switch. This gives you a good
indication that the segment is wired correctly. The LED will BLINK when the module is
sending or receiving data. The LED will be OFF if there is no valid connection.
2.2. CARE AND HANDLING OF OPTICAL FIBER
2.2.1. Handling and Connecting Fibers

Never touch the end face of an optical fiber. Always keep dust caps on optical
fiber connectors when not connected and always remember to properly clean the
optical end face of a connector before making a connection.
The transmission characteristics of the fiber are dependent on the shape of the optical core and
therefore care must be taken to prevent fiber damage due to heavy objects or abrupt fiber bending.
Evertz recommends that the user maintains a minimum bending radius of 5 cm to avoid fiber-bending
loss that will decrease the maximum attainable distance of the fiber cable. The Evertz fiber optic
modules come with cable lockout devices, to prevent the user from damaging the fiber by installing a
module into a slot in the frame that does not have a suitable I/O module.