Datasheet

4
Installing High-Speed Serial Interface Cables
OL-3435-02
Connecting the HSSI Cable
Connecting the HSSI Cable
Connect the HSSI cable between the router and a T3, E3, or SONET DSU as shown in Figure 3 (HIP),
Figure 4 (PA-H), or Figure 5 (NP-1HSSI).
Figure 3 Connecting an HSSI Cable to the HIP
RD (receive data) 4, 29 —> 11, 36 SD (send data)
LC (loopback C) 5, 30 —> 10, 35 LA (loopback A)
ST (send timing) 6, 31 —> 6, 31 ST (send timing)
TA (DTE available) 8, 33 —> 3, 28 CA (DCE available)
TT (terminal timing) 9, 34 —> 2, 27 RT (receive timing)
LA (loopback A) 10, 35 —> 5, 30 LC (loopback C)
SD (send data) 11, 36 —> 4, 29 RD (receive data)
GND (ground) 1, 26,
7, 32,
13, 38,
19, 44,
25, 50
—1, 26,
7, 32,
13, 38,
19, 44,
25, 50
GND (ground)
Loopback (not
connected)
12, 37 —
12, 37 Loopback (not
connected)
Not used 14–18,
20–24,
39–43, 45–49
14–18,
20–24,
39–43,
45–49
Not used
Table 2 HSSI Null Modem Cable Pinouts (Continued)
Signal Name From Pins Direction To Pins Signal Name
To
network
T3, E3, or
SONET DSU
H2813
HIP