Synway SHD-120E-CT/PCI, Руководство по оборудованию

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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
manage to
make the PC
grounded short-circuited short-circuited disconnected
Table 2-4 Configuration of Grounding Jumpers for Use of 75 Ω E1 Unbalanced Coaxial Cable
Step 2: Properly fit the required mainboard and outlet board into the Synway PBX.
Insert the mainboard and outlet board into a pair of vacant slots on the Synway PBX.
With the mainboard completely inserted, push the upper and bottom handles inwards at the
same time until a ‘click’ sound is heard. The board is now properly fitted.
Insert the outlet board properly into the slot on the back of PBX which corresponds to the
mainboard. Push it home and then fasten the corresponding rear panel by two screws (on
the upside and underside of the rear panel).
Notes:
① It is necessary to push the board home into the slot until it can go no further, and
ensure that it is not inclined at an angle before applying lever action on the handles to
secure it. Such problems as poor contact of boards, blue lamp always on which implies
the board abnormality, or damages on connecting parts of the PBX may be caused if:
(I) Handles are used too early
(II) Handles are used while the board is inclined
(III) Force on handles is not applied evenly.
② Board is allowed to be inserted when the computer is at power on. However, as
strong static electricity may lead to damages, the operator should touch a grounded
conductor to discharge the static electricity on him before inserting the board.
Step 3: Connect the outlet board to digital trunks.
Among these four models of outlet boards illustrated in Figure 2-17, RSD043 provides L9
connectors especially for users to connect with L9 coaxial line; RSD081 and RSD041
provide common RJ48C connectors to support direct connections to other boards, the pin
layout being shown below in Figure 2-18; RSD082 provides special RJ48C connectors, the
pin layout being unfolded below in Figure 2-19.
Synway SSW Series E-type Digital Trunk Boards Hardware Manual
(Version 1.1) Page 16