Signal Types; I/O Signal Mapping Table - Safran VersaSync Getting Started Manual

2.3 Assigning I/O Pins
2.3.1

Signal Types

The table below shows the maximum number of available interfaces for each sig-
nal type. Note that you can assign only one signal for each pin pair, hence only
four to nine input and output signals can be transmitted/received at any given
time. For details, see the signal mapping table below.
Table 2-1:
PPS
IRIG
HQ
GPIO
ASCII
Note: ASCII Time Code is abbreviated in the UI as
DCLS Signal Lines
Up to six TTL (5V) or 10 V DCLS outputs and three DCLS inputs are available for
e.g., 1PPS, xPPS, IRIG, HaveQuick, ASCII ToD signal transmission.
Single-ended Serial Lines
VersaSync provides up to 3 RX and 3 TX RS232 interfaces for e.g., ASCII..
Differential Serial Lines
Up to four differential serial lines are available. Each of them can be set to RS485
electrical standard, and used as input or output. PPS or Time-of-Day messages
are available, as well as HAVE QUICK and other formats. Note that this kind of
interface uses two Channels.
Non-Configurable Pins
Channel # 0 provides a DCLS TTL output signal that is not user-configurable.
Also note that pins # 19 through 26 are reserved for the USB command line inter-
face.
2.3.2

I/O Signal Mapping Table

Each Channel (i.e., each pin pair e.g., "3&4" = Channel 1) can serve as only one
interface, and not all combinations are possible due to the internal multiplexer
architecture.
24
Available signal types
DCLS, TTL DCLS, 10V
out (5), in (2) out (1), in (1)
out (5), in (2) out (1), in (1)
out (5), in (2) out (1), in (1)
out (5) out (1)
RS485 RS 485, 120 Ω
out (4), in (4) in (4)
out (4), in (4) in (4)
out (4), in (4) in (4)
out (4), in (4) in (4)
ATC
.
VersaSync Getting Started Guide Rev. 10
RS232
out (3), in (3)