Synway TEJ100E, Руководство по оборудованию, Страница: 15 / 18

Synway Information Engineering Co., Ltd
Transmit
End
grounded grounded non-grounded non-grounded
Opposite
Terminal
Local
Terminal
Receive
End
non-grounded grounded non-grounded grounded
Transmit
End
short-circuited disconnected short-circuited disconnected
PC grounded
Receive
End
disconnected disconnected short-circuited short-circuited
Transmit
End
short-circuited short-circuited short-circuited
PC not
grounded
Receive
End
short-circuited disconnected
manage to
make the PC
grounded
short-circuited
Table 2-2 Configuration of Grounding Jumpers for Use of 75 Ω E1 Unbalanced Coaxial Cable
Step 2: Properly fit the board onto the PC chassis.
It is suggested to fix the L-brackets on the board with screws before going to the next step.
Step 3: Connect to digital trunks.
Each board provides 1~2 RJ48C jacks, each of which can either connect directly with digital trunks
or convert to 2 BNC connectors via an RJ48C-to-BNC adapter. See Figure 2-12 below.
Figure 2-12 RJ48C-to-BNC Adapter
Step 4: Set up an application environment.
Connect digital trunks with the on-board RJ48C jack to establish an application environment.
Step 5: Connect the clock sync line.
Note: Skip this step if there is no need of clock synchronization with multiple boards.
The on-board clock sync line is used to connect with other boards, such as digital trunk boards,
analog boards from Synway or even boards from other companies, to offer a same clock to all
boards connected together. This can reduce the error in faxing and guarantee the accuracy in data
transmission between boards.
Synway TEJ100/200/101/201P, TEJ100/200/101/201E Hardware Manual (Version 1.0) Page 11