2 Manual Document# 3PXCC4A3001
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Specifications Bus: IBM PC ISA Bus
Slot: Requires 1 full length slot for complete IRQ selectability. When
installed in a short slot, IRQ’s 10-15 will not be available.
Dimensions: 7.1 x 4.3 in (18 x 10.9cm)
I/O connection: RJ45 (8 conductor) connectors for all four ports
Character length: 5, 6, 7, or 8 bits
Parity: Even, odd or none
Stop bits: 1, 1.5, or 2
RS-232 Drivers:
Device: 75185 Transceiver
High level output voltage: 6.0 V minimum
Low level output voltage: -6.0 V minimum
Output current limited to ±10 mA
RS-232 Receivers:
Device: 75185 Transceiver
Input high threshold voltage: 1.5V
Input low threshold voltage: 0.75V
Device will withstand ±30V
RS-422/485 Driver/Receiver:
Device: 75ALS180
Differential driver output voltage: 1.5 - 6 V
Differential input high-threshold voltage: 0.2 V
Differential input low-threshold voltage: -0.2 V
Power Consumption:
RS-422/485 Mode without termination on drivers
+5V, 175mA, 875mW
+12V, 60mA, 720mW
-12V, 60mA, 720mW
RS-232 Mode
+5V, 165mA, 825mW
+12V, 80mA, 960mW
-12V, 80mA, 960mW