Nortel Networks Circuit Card - Manual (Page 707)

NTAK02 SDI/DCH card Page 707 of 906
Circuit Card Description and Installation
Table 228
NTAK02 connections at the cross-connect terminal – Port 3
RS422 RS232
Cable Signal
Designations
I=Input
O=Output
Designations
I=Input
O=Output Signal
Pair Color DTE DCE DTE DCE DTE DCE DTE DCE
17T
17R
Y-O
O-Y
SCTEA
—
SCTA
—
O
—
I
—
O
—
I
—
SCT
—
SCT
—
18T
18R
Y-G
G-Y
SCTEB
DTR
SCTB
DCD
O
O I
I —
— —
— CH/CI
DTR
—
DCD
19T
19R
Y-BR
BR-Y
DSR
DCD
CH/CI
DTR
I
I O
O I
I O
O DSR
DCD
CH/CI
DTR
20T
20R
Y-S
S-Y
RTS
CTS CTS
RTS O
I
I
O
O
I
I
O
RTS
CTS CTS
RTS
21T
21R
V-BL
BL-V
SCRA
SCTA
SCTEA
RXCA
I
I O
O I
I O
O SCR
SCT
SCT
—
22T
22R
V-O
O-V
SCRB
SCTB
SCTEB
RXCB
I
I O
O —
— —
— —
— —
—
23T
23R
V-G
G-V
RXDA
TXDA
TXDA
RXDA
I
O
O
I
I
O
O
I
RXD
TXD
TXD
RXD
24T
24R
V-BR
BR-V
RXDB
TXDB
TXDB
RXDB
I
O
O
I
—
— —
— —
— —
—
25T
25R
V-S
S-V
—
SG
—
SG
—
— —
— —
— —
— SG
—
SG
—