Table 3-7 Officeone Contact Assignments - Siemens Hicom 150 E Office Service Manual

Hicom 150 E Office Rel.1.0 Service Manual - 3.2 Central boards
Real-time clock with vanadium-lithium battery (rechargeable)
PCM highway switching and conference circuit
Outputs
Digital subscriber line circuits U
Analog subscriber line circuits a/b
V.24 interface
SBS interfaces
Figure 3-8 SBS interfaces(S30817-Q905-A)
SBS contact assignment

Table 3-7 OfficeOne contact assignments

Contact Conn. X1
ab
1 a1 - Port 1 b1 - Port 1
2 b1 - Port 1 a1 - Port 1
3 a2 - Port 2 b2 - Port 2
4 b2 - Port 2 a2 - Port 2
5 a3 - Port 3 b3 - Port 3
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P0/E
Conn. X2 Conn. X3/X4
U S
P0/E 0
SX+
SR+
SR-
SX-
Conn. X5
V.24
GND
TxD
CTS
RxD
RTS