Model: MC-1-M (2U)
Doc. Ref. no. : - m05/om/101
Issue no. 14
Page 45 of 103
User’s Manual
10. Serial Communication and Configuration
GPS Master Clock Model MC-1-M device has COM2 terminal at back panel of instrument which is female
DB-9 connector operating on RS-232 electrical standards. This terminal can be used to configure GPS
Master Clock Model MC-1-M device parameters only when COM2 terminal of GPS Master Clock Model
MC-1-M device is connected to RS-232 terminal of computer using 9 pin CROSS Cable (refer below
section for cable connections). The COM2 terminal also transmits serial based time signal (T-Format or
NGTS depending on device configuration) only when Model device is not in configuration mode.
NOTE: COM2 terminal of Model device is also available as RS-485 electrical standards instead of RS-
232 standards as an optional feature.
Configuration requires a standard 9-way D-type RS-232 cable and standard serial communication
software in the PC, such as HyperTerminal.
Figure 10.1: Path of HyperTerminal
10.1 Serial Port Setup and Serial Cable Configuration
The cable requirement for GPS Master Clock Model MC-1-M configuration is shown in figure 8.Connect
one end of the cross cable to the COM2 terminal of GPS Master Clock Model MC-1-M and other end to
an available serial port on your local computer. (If there is no RS-232 terminal in user’s computer, user
can use USB-To-Serial convertor. Masibus do not provide USB-To-Serial convertor as part of accessories
supplied with GPS Master Clock Model MC-1-M device).
Open the HyperTerminal and start new connection on COMx of your PC. (x can be any available serial
RS232 port number) as shown in below figure. User can enter any name in “NAME” option.
