Jumper Settings; R Strap Configurations For Rlsd (Cd) Output - Canoga Perkins 2240 User Manual

Canoga Perkins
Jumper Description
W1 / W2 Chassis Ground
W5, W6, W7 RCVR Terminations
W8 / W9 Legacy Config.
W10 / W11 RLSD Output Swing
W12 / W13 / W14 RLSD Output Swing
W15 / W16 DSR
W17 / W18 RTS Bias
W19 / W20 RLSD

4.9.1 Jumper Settings

All jumper settings and descriptions are listed in Table 4-Q. This interface has strap option
jumpers to configure the RLSD Output at J1-8 (DB-25) to support the KG-194 Resync function-
ality. Jumper straps W10 / W11 (adjacent to U11) and W12 / W13 / W14 (adjacent to U8)
implement this function (refer to Table 4-Q and Figure 4-6). Jumper straps W10 / W11 control
the ON / OFF level and W12 / W13 / W14 configure the RLSD Output to Bipolar (+6 V and -6 V)
or single-ended (+6 and 0 or -6 and 0).
STRAP CONFIGURATIONS
W11 and W14
W11 and W12
W11 and W13
W10 and W14
W10 and W12
W10 and W13
The W1 / W2 strap connects chassis ground to signal ground (W2 position), connects chassis
ground through 100 ohms to signal ground (W1 position), or isolates chassis ground from signal
ground (jumper out). The W5, W6 and W7 jumpers, when installed, ground the midpoints of the
100 ohm termination resistances of the FIFO CLK, SCTE and TxD line receivers. These jump-
ers may provide improved performance in cases where the RS-422 inputs are bipolar rather
than the more common unipolar types. The W8, W9 and W15 / W16 jumpers are used for
converting to the Legacy configuration (see Figure 4-15).
80
Notes
W1 - 100 ohms / W2 - Short
W15 - Test / W16 - GND
W17 - On / W18 - Off
W19 - Single Ended /
W20 - Differential
* * J1-6 when using the "Legacy" (P2) Converter
CD OUTPUT (AT J1-8 * * )
VOLTAGE LEVEL ±1 V
ON/OFF
+6/-6
+6/0
0/-6
-6/+6
0/+6
-6/0
Factory
Setting
W1 Default
All Out
Both Out
Table 4-Q.
W11
Jumper Settings
W13
and Descriptions
W16 Default
W18 Default
W20 Default
Table 4-R.
Strap
Configurations
for RLSD (CD)
Output