OptiX OSN 7500
Technical Manual - System Description 4 Boards
Huawei Technologies Proprietary
4-8
4.2.2 PDH Interface Unit
Table 4-6 shows the PDH processing boards and their available slots, and Table 4-7
shows the PDH interface boards and their available slots.
Table 4-6 PDH processing boards and available slots
Board Full name Available slot Outlet mode Interface type Connector
SPQ4 4 x E4/STM-1
processing board
slot 2–slot 3, slot
17–slot 18
Led out from the
interface board
75 ohm E4/STM-1
electrical interface
SMB
PD3 6 x E3/DS3
processing board
slot 2–slot 3, slot
17–slot 18
Led out from the
interface board
75 ohm E3/DS3
electrical interface
SMB
PL3 3 x E3/DS3
processing board
slot 2–slot 3, slot
17–slot 18
Led out from the
interface board
75 ohm E3/DS3
electrical interface
SMB
PQ1 63 x E1 processing
board
slot 1–slot 3, slot
17–slot 18
Led out from the
interface board
120 ohm and 75
ohm E1 interface
DB44
PQM 63 x T1/E1
processing board
slot 1–slot 3, slot
17–slot 18
Led out from the
interface board
120 ohm E1
interface and 100
ohm T1 interface
DB44
Table 4-7 PDH interface boards and their available slots
Boa rd Full name Available slot Interface
type
Used with
MU04 4 x E4/STM-1 electrical
interface board
slot 19–slot 22, slot 35–slot 38 SMB SPQ4
TSB8 8 interface switching &
bridging board
slot 37–slot 38 None MU04, D34S,
C34S and PD3,
PL3
D34S 6 x E3/DS3 PDH interface
switching board
slot 19–slot 22, slot 35–slot 38 SMB PD3
C34S 3 x E3/DS3 interface
switching board
slot 19–slot 22, slot 35–slot 38 SMB PL3
D75S 32 x 75 ohm E1/T1
interface switching board
slot 19–slot 22, slot 35–slot 38 DB44 PQ1
D12S 32 x 120 ohm E1/T1
interface switching board
slot 19–slot 22, slot 35–slot 38 DB44 PQ1, PQM