Datasheet

-7
UFM Cabling
Table C-17 lists the cables that can connect to the UFM back cards for synchronous and
asynchronous circuits.
Table C-17 UFM Data Cables
UFI X.21 and V.35 DTE Port Pin Assignments
Table C-18 lists the UFI X.21 and V.35 DTE pin assignments at the DB-60 connector on the card.
Table C-18 UFI X.21 and V.35 DTE Port Pin Assignments
Cable Parameter Description
Cable type: Standard V.35 or X.21
Cable connectors: X.21 DTE: DB-60, male (provides two X.21 ports)
X.21 DCE: DB-60, male (provides two X.21 ports)
V.35 DTE: DB-60, male (provides two V.35 ports)
V.35 DCE: DB-60, male (provides two V.35 ports)
HSSI: DB-50, male
Maximum cable length: Not to exceed interface standards
Pin No. Name Source Direction Description
7/14 SG Both — Signal Ground
9/22 RxC DCE Input Receive Clock
5/18 TxC DCE Input Transmit Clock
3/16 RxD DCE Input Receive Data
2/15 TxD DTE Output Transmit Data
6/19 XTC DTE Output External Transmit Clock
4/17 DTR DTE Output Data Terminal Ready
10/23 DSR DCE Input Data Set Ready
11 RTS DTE Output Request To Send
24 CTS DCE Input Clear To Send
12 LLB DTE Output Local Loopback Command
13 RLB DTE Output Remote Loopback
26 TM DTE Output Test Mode
20 SG Both — Signal Ground
25 DCD DCE Input Data Carrier Detect
1 — DCE Input Port in DCE Mode