AP500/AP520/AP521 ACROPACK
USER
’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 6 - http://www.acromag.com
- 6 -
www.acromag.com
1.3.1 Ordering Information
The AcroPack ordering options are given in the following table.
Table 1.1 Ordering Options
Model Number
#/Type of
Serial Ports
Operational Temperature
Range
AP500E-LF
1,2
4x RS-232
-40
o
C to 85°C
1,2
AP520-64E-LF
1,2
8x RS-232
-40
o
C to 85°C
1,2
AP521-64E-LF
1,2
8x RS-422/485
-40
o
C to 85°C
1,2
Note 1: For all models listed - all standoffs and screws required for an air cooled
application are provided with the carrier.
Note 2: A conduction cooled application will require purchase of AcroPack
Accessory AP-CC-01 (Conduction Cool Kit).
1.3.2 Key Features
High Density – Provides 4 (AP500) or 8 (AP520/521) serial ports on
each module. Multiple modules mounted on a carrier board provide
up to 24 serial ports in a single VPX system slot or up to 16 serial
ports in a PCIe system slot.
16550 compatible – Exar Quad or Octal UART with 16550-
compatible register set.
256-Byte FIFO Buffers – 256-byte TX and RX FIFOs with
programmable trigger levels.
Programmable Baud Rate – Each individual channel has its own
programmable baud rate generator with fractional divisor. While
the UART supports data rates up to 31.25Mbps, the serial
transceivers only support data rates up to 500kbps (AP500/520) or
20Mbps (AP521).
Interrupt Support – Individually controlled transmit, receive, line
status, and data set interrupts may be generated.
General Purpose Timer/Counter – This 16-bit timer/counter uses
an internal 125MHz clock as the clock source and can be set to be a
single-shot or re-triggerable and is capable of generating an
interrupt.
Individual Modem Control Signals – The AP500 module provides all
modem control signals: RTS, CTS, DTR, DSR, DCD, and RI. The AP520
only provides RTS and CTS.
