ESTeem 195C, User Manual, Page: 57 / 75

APPENDIX B
INTERFACE PORTS
Revised: 15 Feb 2017 APX B-2 ESTeem Models 195MHC
Ethernet Port (Port 2)
The ESTeem Model 195M, 195H and 195C have a Full and Half ‐ Duplex Auto ‐ negotiation interface supporting both 10 Mbps and
100 Mbps (10/100BaseT). The port is compatible with TIA/EIA ‐ 568B cable configuration (Figure 2). A standard Ethernet patch
cable (AA09.2) can be used to interface the 195M/H/C to a computer. The Ethernet port is used for both programming the Model
195M/H/C and data transfer.
RS ‐ 232C Data Ports (Ports 3 and 4)
The ESTeem Model 195M/H/C have two RS ‐ 232C data interfaces on the front panel. Port 3 has a full RS ‐ 232 interface with
handshake, while Port 4 has only Transmit, Receive and Ground. Port 4 will generally be used only when the 195M/H/C is pole
mounted with remote power. To interface the 195M/H/C to the serial port on the computer, you will need serial cable (AA0621.1)
with the following pin ‐ out:
ESTeem Model 195M/H/C Port 3
(ESTeem Model AA0621.1 Cable)
RJ ‐ 45 Pin
No.
Function DB ‐ 9
Pin No.
1 Data Set Ready (DSR) 6
2 Data Carrier Detect (DCD) 1
3 Data Terminal Ready (DTR) 4
4 Signal Ground (GND) 5
5 Receive Data (RxD) 2
6 Transmit Data (TxD) 3
7 Clear to Sent (CTS) 8
8 Request to Sent (RTS) 7
Figure 2: Ethernet Interface