CIO-SERB48, CIO-SERB24/FD,
CIO-SERB08
Specifications

Revision 1.2, May, 2016
© Copyright 2016, Measurement Computing Corporation

Specifications
All specifications are subject to change without notice.
Typical for 25 °C unless otherwise specified.
Specifications in italic text are guaranteed by design.

Output specifications
Table 1. Output specifications
Parameter

Conditions

Specification

Number of relays

CIO-SERB48
CIO-SERB24/FD
CIO-SERB08

48
248
SPDT
7.5 A
4.3 A
5.0 A
250 V AC, 30 V DC
2500 VA, 300 W
15 ms max
5 ms max–40 ºC to +60 ºC (–40 ºF to +140 ºF)
5 V DC typ, 6.5 V max (60 ºC)
3.5 V max
0.5 V min
106 mA47 Ω ( ±10%)530 mW

Contact configuration
Maximum switching current

CIO-SERB48
CIO-SERB24/FD
CIO-SERB08

Maximum switching voltage
Maximum switching power
Operate time
Release timeAmbient temperature range
Coil voltage
Pick-up voltage
Drop out voltage
Nominal operating current
Coil resistanceNominal operating power2

CIO-SERB48, CIO-SERB24/FD, CIO-SERB08

Digital input
Table 2. Digital input specifications
Parameter
Digital type
Configuration

Input current - on condition
Input current - off condition
Output leakage current
Input voltage - on condition

Collector-emitter saturation voltage

Clamp diode reverse leakage current
Clamp diode forward voltage
Read back logic levels (P23)(CIO-SERB24/FD only)

Conditions

Specification

CIO-SERB48
CIO-SERB24/FD
CIO-SERB08
Vi = 3.85 V
Vi = 3.85 V
Vo = 50 V, Ta = +70 ºC
Vo = 50 V, Ta = +25 ºC
Vce = 2.0 V, iC= 200 mA
Vce = 2.0 V, iC= 250 mA
Vce = 2.0 V, iC= 300 mA
iC = 350 mA, iB = 500 µA
iC = 200 mA, iB = 350 µA
iC = 100 mA, iB = 250 µA
Vr = 50 V, Ta = +25 ºC
Diode current = 350 mA
VOHVOLIOH
IOL

ULN2803 Darlington (open collector)
3 banks of 16 outputs
3 banks of 8 outputs
1 bank of 8 outputs
0.82 mA typ, 1.25 mA max
50 µA min, 100 µA typ
100 µA max
50 µA max
2.4 V typ2.7 V typ
3.0 V typ
1.1 V typ, 1.6 V max
0.95 V typ, 1.3 V max
0.85 V typ, 1.1 V max
50 µA max
1.5 V typ, 2.0 V max
2.4 V min, 3.4 V typ0.4 V max–15 mA max
24 mA max

Power consumption
Table 3. Power consumption specifications
Parameter

Conditions

Specification

CIO-SERB48+5 V (all 48 relays - on state)+5 V (all 48 relays - off state)+5 V (all 24 relays - on state)+5 V (all 24 relays - off state)+5 V (all 8 relays - on state)+5 V (all 8 relays - off state)

4.2 A typical, 4.6 A max
0.01 A typical, 0.02 A max
1.9 A typical, 2.4 A max
0.25 A typical, 0.40 A max
0.75 A typical, 0.95 A max
0.015 A typical, 0.04 A max

CIO-SERB24/FD
CIO-SERB08

Environmental
Table 4. Environmental specifications
Parameter

Specification

Operating temperature range
Storage temperature range
Humidity

0 ºC to 70 ºC-40 ºC to 85 ºC
0% to 90% non-condensing

3

CIO-SERB48, CIO-SERB24/FD, CIO-SERB08

Main connector
Table 5. Main connector specifications
Parameter

Conditions

Specification

Field
Logic

Compatible expansion products

CIO-SERB48
CIO-SERB24/FD

CIO-SERB08
CIO-SERB48

CIO-SERB24/FD

CIO-SERB08

4High-density screw terminal, 12-30
AWG (30 A, 300 V)
50-pin male header connector
 Three 50-pin male headerconnectors
 37-pin male header connector
Two 37-pin, male header connectors
 CIO-DIO24
 CIO-DIO96
 CIO-DIO192
 CIO-DIO24
 CIO-DIO48
 CIO-DIO96
 CIO-DIO192
CIO-DIO24

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E-mail: info@mccdaq.com
www.mccdaq.com

CIO-SERBx-spec.docx

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