co
ll
comm
inc
NCS-C412 Dual Trunking Delay Module
Instruction Sheet
2310 Pendley Rd, Cumming, GA 30041
– Tel/Fax: (888)-883-5788
www.collcomminc.com
Introduction
The NCS-C412 Dual Trunking Delay Module installs between any 2 RAD ports of the
NCS-C250/C251 & the NCS-C150 and a Trunking Radio. The module is comprised of 2
independent delay circuits to support 2 Trunking radios. The purpose of the module is to
delay the transmitted audio and PTT release while the Trunking Radio acquires a channel
from the Trunking Radio System controller. This prevents voice transmissions from
being lost or “chopped” during the channel assignment (trunking handshake).
Items Supplied
Items supplied with the NCS-C412 are:
1.
NCS-410-TRM-01.5
(NCS-C412 to NCS-C250/C251/C150 Interface Cable)
[Qty 2]
2.
NCS-C412 Power Pigtail [Qty 1]
3.
Mounting Bracket Kit
(Brackets (x2) & Screws (x8))
[Qty 1]
4.
Rubber Mounting Feet [Qty 4]
5.
This Instruction Sheet
Note that the Radio Interface Cable is supplied separately.
NCS-C412 Installation
The Trunking Delay Module is installed between any RAD port on the NCS-C250/C251
& the NCS-C150 and a Trunking Radio as shown in the diagram on the following page.
The Power Pigtail should be connected to a regulated 12-16VDC power source capable
of at least 500mA. When power is applied correctly, both Green Power LEDs (one for
each circuit) will be illuminated.