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CDD-880 Multi Receiver Router
Rear Panel Connector Pinouts
3.4
Utility Connections
3.4.1
(FUTURE)
Pin #
Name
1
GND
2
MDM_COM_IN
3
TX_IF_MUTE_B
4
ONLINE
5
MDM_COM_OUT_ENA
6
MDM_COM_OUT
7
SER_CLK
8
SER_DATA
9
12VOLT_OUT
3.4.2
CONSOLE (Remote Control Interface) Connector, DB-9M
REDUNDANCY Connector, DB-9F
The REDUNDANCY connector provides the 1:1 control (redundant
switch) interface via a 9-pin Type 'D' female (DB-9F) connector. It is
intended for future connection to a CRS-500 M:N Redundancy System.
The connector provides serial communications to transfer configuration
information from the Prime to the Backup router and a Fault/Clock signal to
signal the switch when a fault occurs.
The connector pinouts are as follows:
Signal Function
Chassis Ground
UART comm to modem from controller
(9600 to115.2BUAD)
Capability to mute modem's Tx IF (Low=Mute) (Use pull-up
on Modem side input)
Commands modem to be Online/Offline
(Use pull-up on Modem side input)
Enable "Mdm_Comm_Out" signal
UART comm. from modem to controller
(9600 to115.2BUAD)
Fault Serial Clock Signal 64KHz
Fault Serial Data Signal from modem
+12 Volts at 300 ma
The CONSOLE connector provides the remote control interface via a 9-pin
Type 'D' male (DB-9M) connector. The settings for this serial interface are
always 38400/8-N-1. It is intended for connection to an M&C computer or
terminal device for EIA-232.
The connector pinouts are as follows:
Pin #
Description
1
Ground
2
EIA-232 Transmit Data
3
EIA-232 Receive Data
4
Reserved - do not connect to this pin
5
Ground
6
Reserved
7
Reserved
8
Reserved
9
Reserved
3–3
Revision 0
MN-CDD880
Type
Gnd
LVTTL Input
LVTTL Input
LVTTL Input
LVTTL Output
LVTTL Output
LVTTL Output
LVTTL Output
12V 300 ma
Direction
–
Out
In
–
–
–
–
–
–
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