Manual
© Sealevel Systems, Inc. 
- 9 - 
ACB-MP.PCI User Manual 
Electrical Characteristics 
Features 
  Single port with DB-25M connector 
  Configurable for RS-232, RS-422, RS-485, RS-530, RS-530A, or V.35 
  Z85230 Enhanced Serial Communications Controller (ESCC™) supporting 
synchronous or asynchronous communications 
  Programmable electrical interface selection for EIA/TIA-232/530/530A/485 and 
ITU V.35 
  Programmable options for Transmit clock as input or output 
  Software programmable baud rates 
  Data rates to 128K bps 
  X.21 and RS-449 serial interface capability with versatile cabling options 
Specifications 
Environmental Specifications 
Specification Operating  Storage 
Temperature 
Range 
0º to 70º C 
(32º to 158º F) 
-50º to 105º C 
(-58º to 221º F) 
Humidity Range 
10 to 90% R.H. 
Non-Condensing 
10 to 90% R.H. 
Non-Condensing 
Power Requirements 
  +5VDC @ 350mA 
Dimensions 
L W 
4.75” 3.50” 
12.07cm 8.90cm 
Manufacturing 
All Sealevel Systems Printed Circuit boards are built to UL 94V0 rating and are 
100% electrically tested. These printed circuit boards are solder mask over bare 
copper with either Electroless Nickel Immersion Gold (ENIG) or Hot Air Solder 
Leveled (HASL) finish. 










