Telex NI-223 Plus General, Front and Rear Panel Connections and Indicators, Front Panel LED

- 4 -

1 General

The NI223plus is an iDen® interface product designed to connect the IP-223 Ethernet Adapter Panel to the iDen® network. The iDen® Radio Interface can be used to make Direct Connect, Group Call, Alert Calls or Emergency Group calls over the iDen® network. The IP-223 and the NI223plus makes the Nextel network an IP asset to any Telex/Vega IP base consoles (C-Soft, C-6200, IP-1616 or IP-2002).

NI223Plus

NI223 to iDen

LAN/WAN

NI223

To iDen

IP Network Analog

2 Front and Rear Panel Connections and Indicators

2.1Front Panel LED

POWER: Green LED indicates power to the NI223plus.

2.2Rear Panel Connectors

A DB25 connector terminates all connections on the rear of the NI223plus.

Pin #	Signal	Pin #	Signal
1)	+12VDC	14)	IP-223 Ground
2)	IP-223 Transmit Data	15)	MUTE (unused)
3)	IP-223 Receive Data	16)	Option 1 (unused)
4)	Option 2 (unused)	17)	Radio Transmit Data
5)	Radio Receive Data	18)	+5VDC
6)	Radio Audio IN	19)	Radio Audio OUT
7)	PTT Relay NO (unused)	20)	RTS (unused)
8)	Radio DGND	21)	CTS
9)	Radio Audio GND	22)	NC
10)	NC	23)	NC
11)	PTT Relay COM (unused)	24)	IP-223 RX+
12)	IP-223 RX-	25)	IP-223 TX+
13)	IP-223 TX-	Shield	Ground

Note

Connect the Earth Ground to reduce system noise.