|
DSX Access Systems, Inc. |
Cable Specifications
Cable Specifications
All DSX system wiring must be done in compliance with
the National Electrical Code,
RS-232
RS-232 communications are used from Host PC
to Master controller. All RS-232 communications require 3 conductors with an
overall shield and have a maximum distance of 50 feet.
The recommended cable is:
PVC - Belden 8723 - 22 AWG 2 pair shielded,
50 feet max.
Plenum - Belden 82723 - 22 AWG 2 pair
shielded, 50 feet max.
RS-485
RS-485 is used
for controller to controller communications for all DSX Controllers. RS-485 is
also an optional method of communications for the Host PC to Master panel that
can extend the wire distance to 4,000 feet. The DSX-1022 and 1020 controllers
include only an RS-485 method of communications for the Host PC to the Master
panel therefore a DSX-MCI module is required to connect a DSX-1022 and 1020
Master controller to the Host PC. All RS-485 communications require two twisted
pairs, and have a maximum distance of 4,000 feet.
The recommended cable is:
PVC - Belden 9744 - 22 AWG 2 twisted pair,
4,000 feet max.
Plenum - Belden 82741 - 22 AWG 2 twisted
pair, 4,000 feet max.
Readers and Wiegand
Keypads
Card readers and DS-400 Keypads require a 3
pair 22 or 20 AWG cable with an overall braided shield. Maximum distance from
the DSX controller to the reader is 250 feet with 22 AWG wire and 500 feet with
20 AWG wire. 3 Pair cable provides: 1 pair for power, 1 pair for Data, and 1
pair for two separate LED control lines. Motorola Readers with optional buzzer
require 7 conductors. If there is any question on how many conductors are
required for a particular reader or keypad, reference the wiring diagram for
that reader in this manual. If greater distances are required, the DSX-220
Module will provide up to 1,500 feet for Wiegand or
Clock and Data type outputs with 18 AWG wire.
The recommended cable is:
PVC - Belden 9942 or 8777 - 22 AWG 3 pair
shielded, 250 feet max.
Plenum - Belden 82777 - 22 AWG 3 pair shielded, 250 feet max.
PVC - Belden 9873 - 20 AWG 3 pair shielded,
500 feet max.
Plenum - Belden 83606 or 85164 - 20 AWG 3
pair shielded, 500 feet max.
Note
/// All 5Volt powered Readers
and Keypads that draw 50ma or more should have a minimum of an 18 AWG cable.
Locks
12-24 Volt Lock wire from
door to controller. All
locks require a 16 AWG 2 conductor cable and have a maximum distance of 500
feet.
The recommended cable is:
PVC - Belden 8471 - 16 AWG 1 pair, 500 feet
max.
Plenum - Belden 85221 - 16 AWG 1 pair, 500
feet max.
PVC - Belden 8461 - 18 AWG 1 pair, 250 feet
max.
Plenum - Belden 82740 - 18 AWG 1 pair, 250
feet max.
Inputs
Input wire from monitored device to
controller. All inputs require a 22 AWG 2 conductor cable and have a maximum
distance of up to 1,000 feet. (Shielded cable is required for UL
installations.)
The recommended cable is:
PVC - Belden 8451 - 22 AWG 1 pair, 1,000
feet max.
Plenum - Belden 82761 - 22 AWG 1 pair, 1,000
feet max.
AC Transformer
AC power wire from
transformer to controller.
Primary AC power to the controller from the transformer requires an 18 AWG 1
pair cable with a maximum distance of 25 feet.
The recommended cable is:
PVC - Belden 8461 - 18 AWG 1 pair, 25 feet max.
Plenum - Belden 82740 - 18 AWG 1 pair, 25
feet max.
Elevator Cable
Elevator Travel Cable for Card Readers
requires a 20 AWG 3 Pair stranded elevator travel cable with an overall foil
braided shield. It is very important that the cable is designed for use as an
elevator travel cable. Normal stranded cable cannot withstand the constant
flexing caused by the elevator movement.
The recommended cable is:
BIW - 626PR04-00S - 20 AWG 4 pair, 500 feet
max.
It may be necessary to contract the additional cable
to be installed by a certified elevator company. If using pairs of wires in
existing travel cables, the outer pairs of the cable in reference to the inner
core are preferable. Under harsh conditions, induced voltages or signals may
prevent the readers in an elevator or other application from working. This can
possibly be overcome with the use of the DSX-220 Module.
LAN
The recommended cable is:
PVC - Belden 1583A- 24 AWG 4 pair, 10Base T, 300 feet max.
Plenum - Belden 1585A- 24 AWG 4 pair, 10BaseT, 300 feet max.