12
2-WIRE IDSL LINE DRIVER RACK CARDS
Follow the instructions below to select the correct interface for your application:
1. With the 2-Wire IDSL Line Driver Rack Card pulled out of the rack chassis,
locate the driver board on the top of the front card.
2. Lift the interface board gently off of the PC board.
3. Locate the correct interface on the bottom of the driver board. For
example, the RS-232/V.35 interface board is marked “THIS SIDE UP FOR
RS-232” on one side and “THIS SIDE UP FOR V.35” on the other side.
4. Re-orient the interface board into the socket with the appropriate interface
pointed UP and with the arrow pointing toward the front panel of the PC
board.
5. Push the interface driver board gently onto the socket and re-install into the
rack system.
3.1.2 C
ONFIGURATION
S
WITCH
S1
The configuration switches on S1 allow you to specify the data rate, async/sync
data format, transmit clock source, and response to RDL request. Default settings
of S1 are shown in Table 3-1.
Table 3-1. S1 summary.
Position
Function
Factory Default
S1-1
Data Rate
On
S1-2
Data Rate
Off
S1-3
DSR during Local Line Loop
On DSR Enable
S1-4
Reserved
Off
S1-5
Reserved
Off
S1-6
Tx Clock Source
On
S1-7
Tx Clock Source
On
S1-8
Respond RDL Request
On Enable
}
}
}
64K Sync
Reserved
Internal Clock
