TN856 CI-IP-223 Telex (Vega) IP Network Remote Adapter
MT-3/4 Radio Systems
TECHNICAL NOTES
TN856 Rev 7-0-0 Aug 16Page 2 of 4
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TN856, REV 7-0-0, © Aug 2016
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DB-25 Connector Table (Color coding for Codan Interconnect cables):
1 YEL/GRN (PTT NC) 10 RED/BLU (DIG4) 18 WHT/GRY (F2 NC)
2 YEL/BRN (PTT COM) 11 VIO/GRN (CTCSS) 19 WHT/ORG (F2 COM)
3 YEL/GRY (MON NO) 12 VIO/BRN (RX-) 20 WHT/BLU (DIG6/COR)
4 YEL/ORG (F1 NC) 13 VIO/GRY (TX-) 21 BLK/GRN (DIG1)
5 YEL/BLU (F1 COM) 14 VIO/ORG (PTT NO) 22 BLK/BRN (DIG3)
6 RED/GRN (F2 NO) 15 VIO/BLU (MON NC) 23 BLK/GRY (DIG5)
7 RED/BRN (GND) 16 WHT/GRN (MON COM) 24 BLK/ORG (RX+)
8 RED/GRY (DIG0) 17 WHT/BRN (F1 NO) 25 BLK/BLU (TX+)
9 RED/ORG (DIG2)
Installation:
A female DB25 connector on the back of the subrack (J10) can be used for basic base connections to a Telex IP-
223, using a standard straight-through male-to-male DB25 cable (CBLC40-04225092) (WARNING: JU108 must
be confi gured correctly or damage can occur. JU108 B for Rx A COR / IP-223). The IP-223 also requires that
2 pins on the DB25 (PTT COM - pin2 and MON COM - pin 16) are wired to ground for proper operation. The A-PNL-
AUX96-3 auxiliary connector can also be used to connect to the Telex board to a Codan Base Station with an AC-3E
or CI-BC-4E, as shown in Figure 1. Ensure jumpers JU67A (or JU67X for CI-BC-4E) and JU68 are installed on the
AC-3E and CI-BC-4E. On Codan MT-4R and MT-4D P25 radio systems, the CTCSS to Subtone connection is not
connected.
Figure 1: Codan Radio System to Telex IP-223 connection
CODAN RADIO EQUIPMENT
P1 (A-PNL-AUX96-3 CONTROL CONNECTOR)
TXA SECURE / CLEAR (OPTIONAL)
RX A COR
(GPIO 5) AUX 1 AUDIO O/P1
(GPIO 6) AUX 1 AUDIO O/P2
(GPIO 1) AUX 1 AUDIO I/P1
F1 NO
COR (DIG 6)
RX+
RX-
TX+
TX-
GND
F1 COM
PTT COM
MON COM
TELEX CI-IP-223
NETWORK REMOTE ADAPTER
C24
B8
B11
A11
C19
C20
(GPIO 2) AUX 1 AUDIO I/P2
(J5-5)
(J1-7)
(J3-5)
(J3-6)
(J3-1)
(J3-2)
(GPIO 14) AUX 1 PTT K PTT NO
C13
(J3-14)
CTCSS
C22
(J1-4)
TXA SUBTONE I/P
TXA CSEL D0
TXA CSEL D1
C21
(J2-1)
B21
(J2-2)
DIG0
TXA CSEL D2
TXA CSEL D3
A21 (J2-3)
C23
(J2-4)
DIG2
DIG1
DIG3
Jumpers Required For TXA Channel Select:
TELEX: J8A (+5 V Pullup)
SR-39-1: JU50A, JU51A, JU52A, JU53A, Remove JU48
On older motherboards (Serial # 123125 and earlier)
the jumpers were as follows:
SR-39-1: JU24B, JU25B, JU26B, JU27B, Remove JU41
RXA SQUELCH OVERRIDE MONITOR NO
C10
(J4-9)
GROUND
GROUND
GROUND
GROUND
A32, B32
(J4-1)
A32, B32
(J4-2)
A32, B32
(J4-3)
A32, B32
(J4-4)
(CONNECTOR J8) +13.8V
GND
+12V
GND
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