Westermo ED-10 TCP - Manual (Page 12)

12 6609-2211
CH2: RS-232 Connections (D-sub connector), DCE
CH1 and CH2 are not galvanic isolated.
Please use a RS-232 isolator (e.g. MD-52) if earth voltage differences are suspected. An isolator on
permanently connected CH2, is required to maintain the enhanced transient/surge protection of CH1.
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Pin Signal Name*
Number Description V.24 RS-232C
Direction** Description
1 DCD 109 CF – Data Carrier Detect, not connected
2 RD 104 BB Out Received Data
3 TD 103 BA In Transmitted Data
4 DTR 108.2 CD – Data Terminal Ready, not connected
5 SG 102 AB In/out Signal Ground
6 DSR 107 CC – Data Set Ready, not connected
7 RTS 105 CA In Request to Send, not used
8 CTS 106 CB Out Clear to Send, not used
9 RI 125 CE – Ring Indicator, not connected
* Functionality might differ from standard, see chapter 7.3
** Direction relative ED-10 TCP.
RS-232 cable must not exceed 15 m
Ethernet 10Base-T Connection (RJ-45 connector),
straight function MDI (no crossover)
Contact Signal Name Direction* Description
1 TD+ Out Transmitted Data
2 TD– Out Transmitted Data
3 RD+ In Received Data
4 Not connected
5 Not connected
6 RD– In Received Data
7 Not connected
8 Not connected
* Direction relative ED-10 TCP.
CAT 5 cable is recommended.
Unshielded (UTP) or shielded (STP) connector might be used.
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