D-Link DMI-128ESU User Manual
D-LINK ISDN TA DMI-128ESU+
54
APPENDIX
APPENDIX 1 DCE 9Pin D Type Connector Definition
1
2
3
5
4
6
7
8
9
Pin Signal
Name Direction
Description
3 SD,
Send
Data
Æ
DTE send data to TA
2
RD, Receive Data
Å
TA send data to DTE
7
RS, Request to Send
Æ
DTE request to send data
8
CS, Clear to Send
Å
TA inform DTE can to send data
6
DR, Data Set Ready
Å
TA is ready receiving command from DTE
5
SG, Signal Ground
Å
TA signal ground (GND)
1
CD, Carrier Detect
Å
TA inform DTE that has a call incoming already
4
ER, Data Terminal Ready
Æ
DTE is ready, it can working now
9 CI,
Ring
Indication
Å
Incoming ring indication
Terminating Resistor Settings (DIP Switch inside Battery Compartment)
Switch SW2
DIP Switch 1,2 - ON (default) =100 ohm Terminating
Resistor
DIP Switch 1,2 - OFF =0 ohm Terminating
Resistor
DIP Switch 3 - OFF (default) =N.A Keep in OFF Mode
DIP Switch 4 - OFF (default) =N.A Keep in OFF Mode
The Terminating Resistor of 100 ohm should be set in the
DMI-128ESU+, when your NT1 is set to 100 ohms, in the
point-to-point connection, between NT1 and TA.
DIP Switch 1,2 - ON (default) =100 ohm Terminating
Resistor
DIP Switch 1,2 - OFF =0 ohm Terminating
Resistor
DIP Switch 3 - OFF (default) =N.A Keep in OFF Mode
DIP Switch 4 - OFF (default) =N.A Keep in OFF Mode
The Terminating Resistor of 100 ohm should be set in the
DMI-128ESU+, when your NT1 is set to 100 ohms, in the
point-to-point connection, between NT1 and TA.