914-Hde Serial Data Ports; Table 4-3: Serial Data Port Numbering; Table 4-4: Serial Data Connector Pinout; Figure 4-5: Molex Micro-Fit P/N 43045-0800 - Moog FOCAL 914-HDE L1 User Manual

4.4

914-HDE Serial Data Ports

The 914-HDE has two non-isolated serial ports supporting RS-232, RS-485 or RS-422 signaling protocols. These
three protocols may be configured by the user in the field via the 914 Diagnostic GUI. TTL and PPS are factory
options. All data rates are supported up to 2.5 Mbaud for RS-485 and RS-422 and up to 500 KBaud for RS-232.
Each port can support completely independent serial data links with independent baud rates. By default, RS-485
and RS-422 inputs are terminated differentially with an on-board 120  resistor that can be disabled via software
configuration. Latency through the Mux/Demux system is less than 50 s, not including fiber delays of 5 ns/m.
For RS-485 which is a half-duplex protocol, a programmable turn-around time is implemented. The default turn-
around time (timeout between Tx and Rx) is set to 1 ms. Serial port settings, including protocol, timeouts, and
terminations may be accessed and changed via the Model 914 Diagnostic GUI.
The serial port connector is Molex Micro-fit P/N 43045-0800. The mating plug is Molex Micro-fit P/N 0430250800
with Molex crimps P/N 0430300010. The pinout is detailed in Table 4-4. Tx refers to transmit data from the 914-
HDE to the external equipment. Rx refers to receive data into the 914-HDE from the external equipment. Data
coming into the RS-422 RX lines at the remote, for example, will exit from the RS-422 TX lines at the console.
REF. PIN
1
2
J6 CH1 CH2
3
4
Focal Technologies Corporation
A Moog Inc. Company
Model 914-X Series Modular Multiplexer System User Manual

Table 4-3: Serial Data Port Numbering

Port Number Reference Designator
1 J6 (lower pin row)
2 J6 (upper pin row)

Table 4-4: Serial Data Connector Pinout

RS-232
5 RS232-RX
6 GND
7 DO NOT CONNECT
8 RS232-TX

Figure 4-5: Molex Micro-fit P/N 43045-0800

Figure 4-6: Serial Ports 1 and 2
MODE
RS-485
DO NOT CONNECT
GND
RS485+
RS485-
Document Number: 914-0601-00 Rev. 5.0
RS-422
RX 422+
RX 422-
TX 422+
TX 422-
Page 4-4