p.6
NOTICE TO PREVENT TROUBLE AND MALFUNCTION
iTDC
STP (Shielded Twisted Pair)
is recommended when you connect RS485 or RS422
communication.
Connect shield wire
of STP
to power GND. But connect one end only.
If you connect both ends of shield wire to GND, communication error might be
occurred by current which is generated by mutual potential difference. Therefore,
you must connect only one end of shield wire to power GND.
Summary of Contents for iTDC
Page 1: ...USER MANUAL iTDC 2 4 DOOR ACCESS CONTROL SYSTEM ...
Page 20: ...FEATURES iTDC p 13 3 DIMENSION Unit inch mm ...
Page 22: ...FEATURES iTDC p 15 Internal TCP IP Module IIM100 ...
Page 79: ...p 72 SETTING CHANGES iTDC ...
Page 87: ...p 80 SETTING CHANGES iTDC ...
Page 101: ...p 94 SETTING CHANGES iTDC 3 SETTING MENU F3 ...
Page 117: ...p 110 SETTING CHANGES iTDC ...
Page 135: ...p 128 APPENDIX iTDC But two functions 1 2 cannot be used at the same time ...