Product Specs

Packet Modem Spec Rev6.doc 28 06/09/00
6.2.4 Antenna Cable Specifications:
• (2) Cables are required; one for transmit and one for receive.
• The required connectors are male SMA (DRA bulkhead) to Male MCX (Modem)
• Maximum 0.6 dB insertion loss @ 1618 MHz is required for the cable.
6.3 Module User Interfaces
6.3.1 Antenna Connectors
The module has (2) MCX snap-in connectors for the Transmit and Receive
antenna leads, connecting the DRA to the module.
6.3.2 Data and Control User Ports
• The Data and Control Ports are combined into a single DB-25 male
upright connector, as the primary user interface and functionally contains
(2) 9 pin serial ports and DC power, and reset leads.
• Line Speed for the Data Port and Control Ports are 9.6 K bps
• Signalling uses 8 bits, No Parity and 1 Stop Bit (8,N,1)
• All ports are ESD and short circuit protected.
Note:
The module signal naming convention assumes that the module
is the DCE and that the user application is the DTE.
6.3.2.1 DTR / DSR signal and Power On / Off
An active DTR on any of the three serial ports (Data, Control or Diagnostic)
is used to turn the module on (if DC power is applied first). The module then
boots up from the shut-down state and will assert DSR to indicate that it is
booted up and ready to communicate.
The module starts its power-down sequence only after the DTR lines on all
three serial ports connected to the module are de-asserted. Just before the
module powers off, it will de-assert DSR to let the application know that it is
OK to remove DC power to the module without risk of losing volatile data.