Telex IP-223 iDen Interface NI-223 Plus - Manual (Page 6)

NI223Plus - 7 -
3.2 Connecting the IP-223 and the NI223 plus
Figure 3 Connections between IP-223 and NI223 plus
Connect the IP-223 and the NI223 plus to the iDen® radio as shown in Figure 3. The power for
the NI223 plus will be obtained from the same power connector the IP-223 is using. Make sure the
polarities are correct to avoid damaging the units. Figure 3 shows the iDen® Radio configured
for use with IP-223 Radio 1. Radio 1, Radio 2 or both radio ports on the IP-223 may be used. If
both ports are used, a DB9 splitter cable (Telex P/N 301953) is required to route serial channel
one and two to the respective NI223
plus devices.
3.3 IDen® Radio Setup
At power up or reset, with the iDen® radio properly connected, the display on the IP-223 should
show “iDen” on the line that was enabled, either the top (line 1) or bottom (line 2) of the display.
If after connecting and configuring the IP-223, “iDen” is not displayed, check the following
items:
• Check all connections as described above.
• From the Multicast Port Setup page, check the iDen® Radio Mode, then reset.
• Check the Jumpers for TTL serial communications.
• Make sure the baud rate of the iDen® radio is set at 19200.