HP Model 712/100 hp 9000 series 700 model 712 technical reference manual (a261 - Page 45

HP A4015A X.25/Serial Card, Table 3-4., X.25 Connector Pinouts, Table 3-5. RS-232 Connector Pinouts

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HP A4015A X.25/Serial Card Description The HP A4015A X.25/Serial Card, provides a X.25 connection and a second RS-232 serial connection to the Model 712 workstation. A single 26-pin connector is used on the card with all necessary signals for both X.25 and RS-232. A "two-headed" external cable will allow simultaneous use of both functions. Features X.25 H X.25 supports 1.2 to 19kbs. H X.25 supports implementation of the LAP-B data-link protocol Table 3-4. X.25 Connector Pinouts Pin No. 1 2 3 4 5 6 7 8 9 Signal Prot. Ground TXD RXD RTS CTS DSR Signal Ground DCD Not Connected Pin No. 10 11 12 13 14 15 16 17 Signal Not Connected Not Connected Not Connected Not Connected Not Connected TCLK Not Connected RCLK Pin No. 18 19 20 21 22 23 24 25 Signal Not Connected Not Connected DTR Not Connected Not Connected Not Connected TTE Not Connected Serial H EIA RS-232-C (CCITT V.28/V.24 460.8 Kbps with CTS/RTS) compatibility H Modem control H Supports data transfer rates up to 454k baud H Software selectable parity configuration H Software selectable baud rate H Interrupt capability through status or modem signal lines H 9-pin male D-sub connector Table 3-5. RS-232 Connector Pinouts Pin No. 1 2 3 Signal DCD RXD TXD Physical Specifications Length: Height: Pin No. 4 5 6 Signal DTR Ground DSR 193 mm (7.6 in) 64 mm (2.5 in) Pin No. 7 8 9 Signal RTS CTS RI 3-8 Expansion Slot Cards Model 712 Technical Reference

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3-8
Expansion Slot Cards
Model 712 Technical Reference
HP
A4015A X.25/Serial Card
Description
The HP A4015A X.25/Serial Card, provides a X.25 connection and a second RS-232 serial
connection to the Model 712 workstation. A single 26-pin connector is used on the card with
all necessary signals for both X.25 and RS-232. A "two-headed" external cable will allow
simultaneous use of both functions.
Features
X.25
H
X.25 supports 1.2 to 19kbs.
H
X.25 supports implementation of the LAP–B data–link protocol
Table 3-4.
X.25 Connector Pinouts
Pin No.
Signal
Pin No.
Signal
Pin No.
Signal
1
2
3
4
5
6
7
8
9
Prot. Ground
TXD
RXD
RTS
CTS
DSR
Signal Ground
DCD
Not Connected
10
11
12
13
14
15
16
17
Not Connected
Not Connected
Not Connected
Not Connected
Not Connected
TCLK
Not Connected
RCLK
18
19
20
21
22
23
24
25
Not Connected
Not Connected
DTR
Not Connected
Not Connected
Not Connected
TTE
Not Connected
Serial
H
EIA RS–232–C (CCITT V.28/V.24 460.8 Kbps with CTS/RTS) compatibility
H
Modem control
H
Supports data transfer rates up to 454k baud
H
Software selectable parity configuration
H
Software selectable baud rate
H
Interrupt capability through status or modem signal lines
H
9–pin male D–sub connector
Table 3-5. RS-232 Connector Pinouts
Pin No.
Signal
Pin No.
Signal
Pin No.
Signal
1
2
3
DCD
RXD
TXD
4
5
6
DTR
Ground
DSR
7
8
9
RTS
CTS
RI
Physical Specifications
Length:
193 mm (7.6 in)
Height:
64 mm (2.5 in)