
20
Inner Door Ribbon Cables
Two ribbon cables connect the Terminal Board to the Main
Circuit Board. These cables are on the hinged side of the
Inner Door and are long enough that the Inner Door can be
fully opened without removing the cables. Ensure that the
cables are not twisted and is seated properly in the
connectors. These cables must be attached before the unit
is powered (see Figure 25).
Standard Network Wiring
Standard Network wiring uses a twisted pair of wires
between each panel (see Figure 26). The COM1 of each
Unit is connected to the COM2 of the next Unit. HS-3434
Annunciator Unit are connected the same as the Control
Unit. Wiring is not polarity sensitive. Network wiring is
power-limited. Only COMLINK 1 is supervised for ground
faults.
COMLINK 2 is supervised for ground faults through its
connection to COMLINK1 of previous attached panel.
Table 5: Maximum Capacitance for Network Baud Rates
Note:
Inserting or removing the ribbon cables while the unit is powered can result in damage to the unit.
Note:
• Ensure that only one COM2 is connected to each COM1. If two or more are connected, the
network segment does not work.
• The following table shows the maximum wiring capacitance for the various baud rates supported
by the Network using the standard . The maximum allowable line resistance is 680 ohms.
Baud Rate
Maximum Capacitance
Maximum Network Nodes
9600
100 nF
254
4800
220 nF
254
2400
470 nF
254
1200
680 nF
200
Figure 25: Ribbon Cable Installation
Figure 26: Standard Network Wiring
Содержание Network Plus HS-3030
Страница 2: ......
Страница 4: ......
Страница 6: ......
Страница 23: ...HS 3030 Installation Manual 17 Figure 17 M502M Wiring Figure 18 M500S Wiring for Signalling Circuits ...
Страница 55: ...HS 3030 Installation Manual 49 ...
Страница 56: ...Harrington Signal Inc 2519 4th Avenue Moline IL 61265 HARRINGTON FIRE ALARM SIGNAL INC ...