Hssi Port Connectors; Cabling For Rj-48 Connectors On T1 And E1 Ports; Table B-10 Pinouts For Scsi-Ii Connector - Cisco MGX 8850 Installation And Configuration Manual

HSSI Port Connectors

The High Speed Serial Interface (HSSI) port connects through a female SCSI-II connector This
connector accords with ANSI/TIA/EIA-613. Refer to Table B-10 for the pinouts.
Table B-10
Pin No.
11
36
4
29
6
31
2
27
6
13
3
28
8
33
10
35
12
37
5
30
1,26,7,32,13,38,
19,44,25,50

Cabling for RJ-48 Connectors on T1 and E1 Ports

For T1 and E1 ports that connect through a RJ-48 connector, each connector has:
•
Transmit TIP pin
•
Transmit RING pin
•
Receive TIP pin
•
Receive RING pin
•
Two pins for shielded ground
An illustration of the connector wiring appears in Figure B-1.
Pinouts for SCSI-II Connector
Name Signal Function
SD Send Data
RD Receive Data
ST Send Timing
RT Receive Timing
TT Terminal Timing
CA DCE Available
TA DTE Available
LA Loop Ckt A
LB Loop Ckt B
LC Loop Ckt C
SG Signal Ground
Polarity Signal Source
+ DTE
-
+ DCE
-
+
-
+
_
+ DCE
-
+ DCE
-
+ DTE
-
+ DTE
-
+ DTE
-
+ DCE
-
AC Power Cabling
Cabling Summary B-7