Verilink PRISM 3021 (34-00262) Product Manual - Manual (Page 16)

2-8 Installation PRISM 3021
X.21 - To convert the X.21 interface from the DB-25 to a
DB-15 connector, use part number 9-1001-098-xxx. Pinouts
for the DB-25 to DB-15 adapter are shown in Table 2-U.
E1 DTE Port - The PRISM 3021 provides an optional E1
DTE port interface for E1-DTE applications. The E1 DTE
connector (This connector is labeled T1 DTE on the rear
panel of the 1051 chassis. The 1051 chassis can be used for
DDS, E1, and T1 circuits.) pinout is shown in Table 2-V.
The PRISM 3021 has four styles of E1-DTE connectors: an
RJ-48, a DB-15, a 75-ohm BNC, and a 120-ohm twinax. The
pinout for the RJ-48S connectors are given in Table 2-X.
NMS Port
The PRISM 3021 is fully compatible with the TxPORT
8100A Site Controller.
NMS ports provide access to the 8100A Site Controller. The
unit accesses the built-in 1051 chassis bus.
An element may be accessed by using an RS-232 connec-
tion from the serial port of the computer running the 8100A
program to the element’s SUPV port or the (A) NMS IN
Table 2-T High-Speed DTE Connector Pinout
ITU/EIA
Circuit
Common Name
DB-25
25-pin V.35
34-pin
DCE
101/AA Frame Ground 1 A Gnd
102/AB Signal Ground 7 B Gnd
103/BA (A) Transmit Data A 2 P In
103/BA (B) Transmit Data B 14 S In
104/BB (A) Receive Data A 3 R Out
104/BB (B) Receive Data B 16 T Out
105/CA Request to Send 4 C In
106/CB Clear to Send 5 D Out
107/CC Data Set Ready 6 E Out
108/CD Data Term Ready 20 H In
109/CF Data Carrier Detect 8 F Out
114/DB (A) Transmit Clock A 15 Y Out
114/DB (B) Transmit Clock B 12 AA Out
115/DD (A) Receive Clock A 17 V Out
115/DD (B) Receive Clock B 9 X Out
113/DA (A) External Clock A 24 U In
113/DA (B) External Clock B 11 W In
141/LLB Local Loopback 18 J In
140/RLB Remote Loopback 21 BB In
142/TM Test Mode 25 K Out
Table 2 -U DB-25 to DB-15 Adapter Cable Pinout for
the X.21 Interface
Common Name DB-25 DB-15
Framing Ground 1 1
Signal Ground 7 8
Transmit Data 2
14 2
9
Receive Data 3
16 4
11
Data Carrier Detect 8
10 5
12
Receive Clock 17
9 6
13
Sec. Rec. Data/Byte
Timing 6
22 7
14
Table 2-V E1 DTE Pinout
Pin E1 DTE Signal
1 Tip Output
2 Ring Output
3 Not Used
4 Tip Input
5 Ring Input
6 Not Used
7, 8 Chassis Ground