TABLE 2-2
CONNECTOR CONFIGURATION
2
3
3
3
2
4
a
5
5
C T S
7
4
7
GND
5
7
4 .
Plug the RS-232 cable into connector on the
supervisor CPU (Figure 2-3). Attach the other end
to the appropriate connector on the host computer.
5. Make sure that the host computer’s RS-232
settings agree with those of the VPS 1300. Refer
to the VPS
344 System Programming
Manual, X552.
2.4.1.3 Remote Keypad Port
Up to 32 keypads can be connected to the
supervisor CPU. These keypads let the operator con-
trol pan, tilt,
autoiris, lens speed, preset
entries, auxiliary functions, alarm acknowledgment,
and receiver communication
acknowledgment.
The
communicates with remote keypads
via connector J2, serial Channel Refer to Table 2-4
and Figure 2-6.
RS-232
PIN-CONFIGURATION
NOTE:
connector J2 is also used
for communications with the
Refer to section 2.4.1.4.
The keypads can be connected to the CPU in two
configurations, serially (“daisy chain”) or radially
(“star” or “wagon wheel”). The star configuration
requires the use of a
Distribution Line
Control, hereafter referred to as a DL. Up to ten
keypads can be connected directly to a DL, and other
may also be connected to it. Keypads can also be
daisy chained from a DL. Refer to Appendix C.
There may be up to 5 miles (8 km) between the CPU
and a keypad or between the CPU and a DL. (Refer to
Table 2-3, Shielded, Dual Twisted-Pair Cable
Maximum Operating Distances.) Since keypads and
provide unity gain amplification to the incoming
signal before transmitting it to the next device in line,
there may be up to 5 miles (8 km) between a keypad
and other keypads, between a DL and keypads, or
between a DL and another DL.
Refer to Appendix D, Addressing
and
Remote Control Keypads, and applicable
instruction manuals.
NOTE: The remote keypads are connected to
the
via shielded, dual twisted-pair
cable. Each twisted pair MUST be individually
shielded.
I
I B M - A T
P I N C O N F I G U R A T I O N
IBM-XT RS-232
P I N C O N F I G U R A T I O N
Notes:
1. Arrow heads show direction of signal flow.
2.
side shown on all connectors.
Figure
RS-232 Connector Cabling
2-6
X820-792
