3Com 59039-2 Network Router User Manual


 
Sen sor Break Pro tec tion: Ap pli ca ble to 4 - 20mA, 1 - 5V and 2 -
10V ranges only. Break de tected within
two sec onds. Alarms op er ate as if the
pro cess vari able has gone under- range.
REMOTE RESET INPUT (Option)
Type: Voltage- free, TTL- compatible
May be con nected to: Ex ter nal switch/re lay con tacts or
TTL- compatible logic sig nal.
Re set caused by: Open- close tran si tion (ex ter nal
switch/re lay con tacts) or “1" - ”0" logic
tran si tion (TTL logic sig nal).
Maxi mum In put De lay
(open - closed or “1" - ”0"): 1 sec ond
Mini mum In put de lay
(closed - open or “0" - ”1"): 1 sec ond
External switch/relay contacts:
Maxi mum Con tact Re sis tance
(Clo sure): 50
Mini mum Con tact Re sis tance
(Open): 5000
External TTL Logic Signal:
Maxi mum Volt age (TTL) for “0": 0.8V
Mini mum Volt age (TTL) for “0": –0.6V
Mini mum Volt age (TTL) for “1": 2.0V
Maxi mum Volt age (TTL) for “1": 24.0V
OUTPUT 1
General
Type: Re lay.
Con tact Type: Sin gle pole dou ble throw (SPDT).
Rat ing: 2A re sis tive at 120/240V AC.
Life time: >500,000 op era tions at rated
volt age/cur rent.
Iso la tion: In her ent.
SM067-A November, 2000 A-3
59039
1
8
-DIN Digi tal In di ca tor Ap pen dix A
Prod uct Man ual - Vol ume II Prod uct Speci fi ca tion