Vhsi Port Interface Specifications - IBM PCI WAN 2 Port S91 Installation Manual

VHSI Port Interface Specifications

The standards compliant with each interface supported on the VHSI ports are
listed in the table below. The rest of this section describes the allocation of pins
used to implement the electrical and signalling requirements of each interface.
A wiring diagram is also provided, to show the correspondence of the interface
pinout to the VHSI port.
Interface
V.24
V.35
EIA-530
V.36/RS-449 CCITT V.10
X.21
Standard Compatibility
CCITT V.24 Signalling
CCITT V.28 Electrical
CCITT X.21bis Electrical and signalling
EIA RS-232-C Electrical and signalling
ISO 2110 Connector type for the DCE side of a V.24 VHSI
Modem Cable
CCITT V.28 Some signals for electrical
CCITT V.35 Some signals for electrical and signalling
ISO 2593 Connector type for the DCE side of a V.35 VHSI
Modem Cable
RS-422 Electrical
RS-423 Electrical
ISO 2110 Connector type for the DCE side of a EIA-530 VHSI
Modem Cable
Electrical
CCITT V.11 Electrical
RS-422 Electrical
RS-423 Electrical
ISO 4902 Connector type for the DCE side of a V.36/RS-449
VHSI Modem Cable
CCITT X.21 Signalling
CCITT V.11 Electrical
CCITT X.27 Electrical
EIA RS-422-A Electrical
ISO 4903 Connector type for the DCE side of an X.21 VHSI
Modem Cable
Table 3: Interface Compatibility
9 VHSI Port Interface Specifications