X1200 Series Router Manual
Page 2-4
Revision 1.3.2
INSTALLATION
Pin
#
Name Description
1 GND Chassis ground
2 TxD RS-232 Transmit Output
3 RxD RS-232 Receive Input
4
5 Sig Gnd RS-232 Signal Ground
6
7 RTS RS-232 RTS Input
8 CTS RS-232 CTS Output
9
Table 2-1: Router RS-232 Port Pin Definitions
REMOTE PANEL This 9 pin female D connector provides an RS-422 serial interface used if the local
panel is not attached to the main chassis. This port is wired as a SMPTE 207M Tributary as
shown in Table 2-2.
Pin
#
Name Description
1 GND Chassis ground
2 Tx- RS-422 Tx-(a) Output
3 Rx+ RS-422 Rx+(b) Input
4GND
5
6GND
7 Tx+ RS-422 Tx+(b) Output
8 Rx- RS-422 Rx-(a) Input
9GND
Table 2-2: Router RS-422 Port Pin Definitions
LOCAL PANEL This connector is currently not used.
GPI / O This female DB-25 pin connector provides 14 General Purpose Opto-isolated inputs (GPIs) and
4 General Purpose isolated relay outputs (GPOs). Vint provides +5Volts from the Router and
Vext is used to provide external power the opto isolators. Typically Vint and Vext are
connected together so that the isolators may be powered from the router. Table 2-3 shows the
pin definitions of the GPIO connector. Figure 2-4 shows a schematic of the GPIO circuitry.
See section 2.5 for more information on connecting the General Purpose inputs and outputs.
The functions of the GPIs and GPOs are assigned using the Setup menu, and can be used to
select crosspoints and receive tallies from the router. See section 3.12 and 3.13 for information
on setting up the GPIO operation.
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