
27
Agere Systems Inc.
Data Sheet
June 2002
TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
3 Pin Information
(continued)
Pin
Symbol
Type
—
I/O
I
Description
B12, D11,
D10, D9, C9,
A8, B7, D6,
B5, B4, B3,
E6, K5, C1,
D1, E4, F2,
G1, H3, H4,
J2, K2, L2,
M1, N3, N4,
P1, R2
A13
LINERXSYNC[28:1]
Line Receive Synchronous[28:1].
Multifunction input.
Channel assignment may be configured through the inter-
nal cross connect. Can be used as the negative rail of a
DS1/E1 signal in conjunction with LINERXDATA[28:1],
when operating in dual-rail mode. In CHI mode, these
inputs are used for receive TDM highways that may run at
2.048, 4.096, or 8.192 Mbits/s. In parallel system bus
mode, the receive system data bus inputs are assigned to
LINERXSYNC 16:1. The PSB is a 16-bit wide bus that
operates at 19.44 MHz.
Line Receive Synchronous 29.
Multifunction input.
Channel assignment may be configured through the inter-
nal cross connect. Can be used as the negative rail of a
DS1/E1 signal in conjunction with LINERXDATA 29, when
operating in dual-rail mode.
LINERXSYNC29
—
I/O
In CHI and PSB modes, this input is used as the receive
system frame synchronization input. In NSMI mode, it is
the receive frame sync output.
Line Transmit Data [28:1]
Configurable outputs from the
internal cross connect.
Used for transmit positive-rail or
single-rail DS1/E1 line data outputs. May be connected to
the DS1/E1 outputs from the VT mapper, M13 MUX, or
DS1/E1 frame line outputs. May also be used as a DS2
output.
R25, P26,
N23, N24,
M26, L25,
K25, J25,
H23, H24,
G26, F25,
E23, D26,
C26, E21,
B24, B23,
B22, D21,
B20, A19,
C18, D18,
D17, D16,
B15, A14
T23
LINETXDATA[28:1]
—
I/O
LINETXDATA29
—
O
Line Transmit Data 29.
Configurable output from the
internal cross connect. An extra DS1 or E1 transmit port
that may be used for protection or as a timing reference
output.
Table 12. Multifunction System Interface Transmit Path Direction
(continued)