ALLEN & HEATH iDR-8 Schematic

+5V
C1
100N 100V/MLC
CN1 DGND
1 2
1 2
ERX+ 3 4 ERX-
e
3 4
ELINKLED 5 6 ETXLED_L
5 6
ETX+ 7 8 ETX-
7 8
9 10
9 10
GPIO_SPARE1 11 12 COMMSSEL1
11 12
COMMSSEL0 13 14 GPI/P_SPARE1
13 14
TXD2 15 16 COMMSSEL2
15 16
RXD2 17 18 TXD485
17 18
RXD485 19 20 FRONT232EN_L
19 20
TXD1COMMS 21 22 DCD1
21 22
CTS1 23 24 RXD1COMMS
23 24
25 26
25 26
BOX 13X2 M STRT
DGND DGND
CPU Connector
d
LK23
LINK OPT
DGND

Optional Grounding Link

c

MIDI Connectors

CN4 DIN SKT FEMALE HA 5 PIN 180 DEG
1
4
0 2
MIDI THRU
5
3
C18 C20
1N/MYL 1N/MYL
CN5 DIN SKT FEMALE HA 5 PIN 180 DEG
1
4
MIDI IN 0 2
b
5
3
C19 C21
1N/MYL 1N/MYL
CN6 DIN SKT FEMALE HA 5 PIN 180 DEG
1
4
MIDI OUT
0 2
5
3
C22 C23
1N/MYL 1N/MYL
a
ALLEN&HEATH
ISSUE BY DATE
Kernick Industrial Estate,
A GLG 21/06/01
Penryn, Cornwall,
B JB 10/09/01
England. TR10 9LU
C JB 8/01/02
ISSUE C1 PCB BECOMES ISSUE 1 21/06/02
Tel: +44 (0)8707 556250
Fax: +44 (0)8707 556251
A
+3V3

Control Port RS232 Female D-Type (DTE)

DB9FH(DMR)
C25 C2
CN2
47/25 100N 100V/MLC
1
6
2
DGND 7
3
8
4
9
5
DGND

Modem and PC RS232 Male D-Type (DCE)

Note: Use a null modem cable if connecting to a PC.
5
9
4
8
3
7
2
6
1
CN3
DB9MH(DMR)
+5V +5V
R3
220R C24
L9
R6
47/25
560R
4.7UH
L10
4.7UH Q1 DGND
R1
220R
R8
BC549
390R
+3V3
DGND
U3
R2
6N136 +3V3
L11 220R
C13
2
100N 100V/MLC
4.7UH
L12
6
D1
4.7UH 3
1N4148
5
+5V +5V DGND
R4
L13 220R
R7
560R
4.7UH
L14
R9
390R
4.7UH Q2
R5
220R
BC549
COMMSSEL0
DGND COMMSSEL1
COMMSSEL2
TXD1COMMS
RXD1COMMS
CHK
BY
FILE: C4505_1P2.Sch
B C
L3
L1
DSS306
L2
DSS306 L4
DSS306
L5
DGND
L6 DSS306
DTR
CTS
TXD
RTS
RXD
CD
+3V3
C29 C14 C15
100N 100V/MLC
DGND
17
TCK
30
TDO
5 15
PGND TDI
6 16
PGND TMS
7
PGND
8 27
PGND RXD232
11 19
PGND TXD232
13
PGND
18 1
PGND RXD485
20 22
PGND TXD485
24
PGND
28 25
PGND RXDCP
DGND 42 35
PGND TXDCP
43
PGND
R25 38
RXD2
10K 26 40
MIDITHRU_L TXD2
2
RXDMIDI
29 14
TXDMIDI_L REAR232EN_L
33
FRONT232EN_L
36
COMMSSEL0
37
COMMSSEL1
34 3
COMMSSEL2 CPLED_L
4
MIDILED_L
39 9
TXD1COMMS 232LED_L
44 12
RXD1COMMS 485LED_L
DRCOMMS
U4
XC9536XL-10PC44C
FITTED IN SOCKET
DGND
D E
+3V3
C5
100N 100V/MLC
DGND
1
C1+
C3
100N 100V/MLC 3
DSS306 C1-
4
C2+
C4
100N 100V/MLC 5
C2-
14
T1OUT T1IN
7
T2OUT T2IN
13
R1IN R1OUT
DSS306
8
R2IN R2OUT
DGND

RS232 Tranceivers

+3V3
C6
100N 100V/MLC
DGND
1
C1+
C9
3
100N 100V/MLC
C1-
4
C2+
100N 100V/MLC
C10
DSS306
L7
5
C2-
14
T1OUT T1IN
7
T2OUT T2IN
13
R1IN R1OUT
8
L8 DSS306 R2IN R2OUT
DGND
+3V3
1
CN10
2
SIL 6 M STRT (NOT FITTED)
3
DGND
4
5
6
+3V3
RXD232
R10
TXD232
RES NF
RXD485
TXD485
RXDCP
TXDCP
RXD2
TXD2
REAR232EN_L
FRONT232EN_L
R11 R12 R13
470R 470R 470R
LD1 LD4 LD5
LED T1 3MM GREEN LED T1 3MM GREEN LED T1 3MM GREEN
TITLE:
PAGE:
DRG No:
PRINTED: 09:33:58 27-Sep-2004
F
U1
2
V+
C8
6
V-
100N 100V/MLC
C7
100N 100V/MLC DGND
DGND
11 REAR232EN_L
10 TXDCP
12 RXDCP
9 CTS1
MAX3232
U2
2
V+
C12
6
V-
C11 100N 100V/MLC
100N 100V/MLC DGND
DGND
11 TXD232
10 REAR232EN_L
12 RXD232
9 DCD1
MAX3232

COMMS SELECTION TABLE

COMMSSEL SMC1 SMC2
2 1 0
0 0 0 CP MIDI
0 0 1 MIDI CP
0 1 0 232 MIDI
0 1 1 232 CP
1 0 0 CP 485
1 0 1 MIDI 485
1 1 0 232 485
1 1 1 232 485
+3V3
R14
CN11
470R
LD6
LED T1 3MM GREEN
PLCC44 CHIP SOCKET
iDR-8 COMMS1 PCB
RS232 and MIDI
C4505 1 1 2
ISSUE: SHEET: OF
G H
D23
003-007 iss.1