11Bserial Cable Configuration; 12Bselecting The Ethernet Cable; Figure 3-2 - Db-9 Connector On The Sec; Table 3-1 - Sec To Microlok Ii Connections - Hitachi Microlok II Installation, Operation And Troubleshooting Manual

3.2 Serial Cable Configuration
11B
The SEC is connected to a Microlok II RS-232 Comm port using a customer-supplied standard
DB-9 connector which is connected to the Serial Connection port on the front panel of the SEC.
The serial cable on the Microlok II end must have RTS (Request to Send) and DCD (Data
Carrier Detect) jumpered together (see Table 3-1) (Refer to the Microlok II manuals The SEC's
pin assignments for the RS-232 DB-9 connectors are shown in
3-1 .
X
SEC (DB-9)
Pin No.
2
3
5
3.3 Selecting the Ethernet Cable
12B
The Ethernet port is a standard eight-pin RJ45 connector which uses any of the widely
available Category 5 (CAT5) or better cable (standard off-the-shelf cable). An Ethernet
crossover cable is required to connect the SEC directly to a PC and a standard Ethernet cable
is used to connect the SEC to the network.
Copyright 2019
9
8
7
6
SOCKET OR FEMALE
DB-9 CONNECTOR

Figure 3-2 - DB-9 Connector on the SEC

Table 3-1 - SEC to Microlok II Connections

Signal Refer to the Microlok II Service Manual SM 6800B, Section 3.5
for connection to the Microlok II System.
RXD (Input)
For Port 3, Jumper Pin C14, RTS (Output), to Pin E10, DCD
TXD (Output)
(Input), and Jumper Pin E18, RXREF, to C18, Signal Common.
Signal Common
For Port 4, Jumper Pin A14, RTS (Output), to Pin C16, DCD
(Input).
SM6800O Rev. 1, March 2019
®
Microlok II Serial-to-Ethernet Converter (SEC)
Figure 3-2
X
5 (SIG COMM)
4
3 (TXD)
2 (RXD)
1
Microlok II Connection
and listed in Table
X X
3-2