描述
输入端与输出端的判别:无标识的固态继电器,万用表R×10k档,通过分别测量各引脚的正、反向电阻值来判别输入端与输出端。当测出某两引脚的正向电阻较小、而反向电阻为无穷大时,这两只引脚即为输入端,其余两脚为输出端。而在阻值较小的一次测量中,黑表笔接的是正输入端,红表笔接的是负输入端。
Alvarion RACK WITH BS-PS-VL BS-PSVL
ISCO 07300-170 RF2. CELL LNA 6 PACK MODULE
HP 7673A AUTOMATIC INJECTOR 18593A 5958-9429
TANDBERG RECEIVER TT1220 1U SERIES 1 11404563 11803889
3COM 6525M-TPFE 4197B 60-0551-1C 90-1150-1C 12-00425
BARCO NE728 MKII V9517220 BG
VXT POLYSPEDE 51FG 3.7KW 5.5HB2 VXT-51FG
Varian Beamline Turbo N2 Regulator& valve 969-9831S001
HP Agilent CABLE BUFFER Board E7085-66553-4123-93-20014
TELLABS 16 X E1 Echo Canceller 8125812 & 2 X PS 815140A
ALCATEL-LUCENT 1642EMC DS3B1 DC-48V 1000mA
CISCO GE-GBIC-SC-B 800-03955-03M0 73-2146-07 B0 CARD
AVANTRY ODU-1-1-3-18 WitLine-2000