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參數(shù)資料
| 型號： | T7264 |
| 英文描述： | T7264 U-Interface 2B1Q Transceiver |
| 中文描述： | T7264 U型接口2B1Q收發(fā)器 |
| 文件頁數(shù)： | 16/54頁 |
| 文件大?。?/td> | 876K |
| 代理商： | T7264 |
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16
Lucent Technologies Inc.
Data Sheet
April 1998
T7264 U-Interface 2B1Q Transceiver
K2 Interface Description
(continued)
Table 7. UM1 and UM2 Octets—eoc Bits (Overview)
Table 8. UM1 and UM2 Octets—eoc Bits (Functions)
Additional details on eoc bits can be found in T1.601.
Octet
UM1
UM2
Octet #
5
6
DO/DI
DO/DI
DO/DI
Bit 1
a1
i5
Bit 2
a2
i6
Bit 3
a3
i7
Bit 4
dm
i8
Bit 5
i1
Bit 6
i2
See next page.
Bit 7
i3
Bit 8
i4
Octet
UM1, 2
Bit #
Symbol
eoc
Name/Function
1—8, 1—4
eoc Bits.
The eoc bits are passed transparently from the U-interface to the
K2 interface and from the K2 to the U-interface. The transceiver maintains
the eoc information at the K2 interface until a new block of eoc information
is available.
eoc Address.
000—NT address.
001—LT to NT intermediate address.
010—110—LT to NT, decrement address and pass on.
001—101—NT to LT, increment address and pass on.
111—Broadcast address.
Data or Message Indicator.
0—Data.
1—Message.
Information.
eoc channel message information.
01010000—Operate 2B+D loopback.
01010001—Operate B1 channel loopback.
01010010—Operate B2 channel loopback.
01010011—Request corrupt crc.
01010100—Notify of corrupted crc.
11111111—Return to normal.
00000000—Hold state.
10101010—Unable to comply.
Refer to T1.601 for codes which are reserved, nonstandard, or internal net-
work use.
UM1
1—3
a1—a3
UM1
4
dm
UM1, 2
5—8, 1—4
i1—i4,
i5—i8
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