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RCS11 1:1 Redundancy Switch
7
RX (B) + RS485
8
TX (A) – RS485
9
TX (B) + RS485
5.4.3 TX B (J3)
The TX B is the TX IF input from the modulator. If the RCS11 is configured for a 70 or 140 MHz
application, then this connector is either a 75 Ohm or 50 Ohm BNC connector. If the switch is
configured for L-Band, then this connector is a 50 Ohm SMA female connector.
5.4.4 TX OUT (J4)
The TX OUT is the TX IF Output from the switch. If the RCS11 is configured for a 70 or 140 MHz
application, then this connector is either a 75 Ohm or 50 Ohm BNC connector. If the switch is
configured for L-Band, then this connector is a 50 Ohm SMA female connector.
5.4.5 TX A (J5)
The TX A is the TX IF input from the modulator. If the RCS11 is configured for a 70 or 140 MHz
application, then this connector is either a 75 Ohm or 50 Ohm BNC connector. If the switch is
configured for L-Band, then this connector is a 50 Ohm SMA female connector.
5.4.6 GND
The Chassis Ground connection is located on the rear panel next to the AC input power entry
module. The Chassis ground connection is a #10-32 threaded stud.
5.5
UNIVERSAL G.703/SYNCHROUNOUS INTERFACE
The RCS11 Unversal G703/Synchrounous Interface supports G703 (Balanced & Unbalanced)
and synchrounous data for the DMD15, DMD20 and the DMD50 products.
5.5.1 SYNC DATA (J7)
The Sync Data Port is a 37-Pin RS449 Female 'D' Connector. This port is the user interface for
Synchronous RS-422 / RS-485 / RS-232 / V.35 Data. Refer to Table 5-4 for pinouts.
Pin Number
1,19,20,37
2,10,12,14,18,28,30,32,34,36
3
4
5
MN-RCS11 – Revision 9
*
Note: Connect to Ground on power up to enable RS485 Mode
Table 5-4. J8 SYNC DATA
Discription
Ground
Not Used
Transmit Octet (A) -
Send Data (A) -
Send Timing (A) -
Connector Pinouts
Input
Output
Output
Signal
GND
NA
Input
Input
Output
5–3
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